diff --git a/67-rev/13.md b/67-rev/13.md
index 12b44c4..493a41d 100644
--- a/67-rev/13.md
+++ b/67-rev/13.md
@@ -9,7 +9,7 @@ The beast and the dragon John wrote about were symbols of someone or something e
 1. Some scholars think the beast was the Roman Empire. They think the dragon was the leader of the Roman Empire.
 1. Some scholars think the beast was a certain leader of the Roman Empire. They think the dragon was Satan.
 
-See: Symbol; Gentile; Antichrist; Satan (The Devil)
+See: [Symbol](../articles/symbol.md); [Gentile](../articles/gentile.md); [Antichrist](../articles/antichrist.md); [Satan (The Devil)](../articles/satan.md)
 
 ### Why did the beast look the way it did?
 
@@ -19,7 +19,7 @@ Some scholars think John wrote about the people who will help the antichrist rul
 
 Other scholars think the seven heads of the beast were symbols of the seven mountains near Rome. These are the scholars who think John wrote about Rome. When John talked about  other things, he wanted to talk about the Roman Empire in some way. 
 
-See: Symbol; Antichrist
+See: [Symbol](../articles/symbol.md);[Antichrist](../articles/antichrist.md)
 
 ### Why did John write that the beast had a “fatal wound”?
 
@@ -31,21 +31,21 @@ Other scholars think John wrote about the Roman Empire after a certain leader di
 
 Some scholars think John wrote about how the Roman Empire ended. A new empire will arise that will be like the old Roman Empire in some way. 
 
-See: Antichrist
+See: [Antichrist](../articles/antichrist.md)
 
 ### What was blasphemy?
 
-See: Blaspheme (Blasphemy)
+See: [Blaspheme (Blasphemy)](../articles/blaspheme.md)
 
 ### What is the book of life?
 
 The book of life is a list of people’s names. These people will live together with God in heaven forever. This may be a metaphor or there may be an actual book in heaven.
 
-See: Heaven; Metaphor
+See: [Heaven](../articles/heaven.md); [Metaphor](../articles/metaphor.md)
 
 ### Who is the lamb?
 
-See: Lamb of God
+See:[Lamb of God](../articles/lambofgod.md)
 
 ### What happened before the world was created?
 
@@ -61,7 +61,7 @@ Other scholars think this was a certain evil religious leader. This leader wante
 
 Other scholars think the beast was another leader in the Roman Empire or a leader in Israel. 
 
-See: Symbol; Prophet; Miracle; Antichrist; Satan (The Devil)
+See: [Symbol](../articles/symbol.md); [Prophet](../articles/prophet.md); [Miracle](../articles/miracle.md); [Antichrist](../articles/antichrist.md); [Satan (The Devil)](../articles/satan.md)
 
 ### What is the image this beast created?
 
@@ -69,16 +69,20 @@ This beast created something for people to worship. This was evil. Scholars thin
 
 See: Daniel 3:1-7 
 
-See: Worship
+See: [Worship](../articles/worship.md)
 
 ### What is the mark people have to have?
 
-In ancient times, slaves often had a mark placed on their forehead. This made people know that the slave belonged to their certain master. Some scholars think John wrote about people who served a certain false teacher. People would somehow know who these people were by the things they said or did. Other scholars think that John wanted to write that Roman leaders or Jewish leaders will persecute Christians. Other scholars think that the antichrist will make people have some kind of mark for people to buy and sell things. This mark means that they worship the antichrist. Therefore, Christians will not be able to buy and sell things. 
+In ancient times, slaves often had a mark placed on their forehead. This made people know that the slave belonged to their certain master. Some scholars think John wrote about people who served a certain false teacher. People would somehow know who these people were by the things they said or did. 
 
-See: Persecute (Persecution); Antichrist
+Other scholars think that John wanted to write that Roman leaders or Jewish leaders will persecute Christians. 
+
+Other scholars think that the antichrist will make people have some kind of mark for people to buy and sell things. This mark means that they worship the antichrist. Therefore, Christians will not be able to buy and sell things. 
+
+See:[Persecute (Persecution)](../articles/persecute.md); [Antichrist](../articles/antichrist.md)
 
 ### What is the number of the beast?
 
 In ancient times, sometimes letters of the alphabet were also used as numbers. Some scholars think this number was a symbol for a certain word. They think John wrote about a certain evil leader in the church. Other scholars think John wrote about the name of a certain leader of the Roman Empire.
 
-See: Symbol
+See: [Symbol](../articles/symbol.md)