diff --git a/Good-Governance-Calendar-%28GGC%29.md b/Good-Governance-Calendar-%28GGC%29.md
index e42aee9..fad8d43 100644
--- a/Good-Governance-Calendar-%28GGC%29.md
+++ b/Good-Governance-Calendar-%28GGC%29.md
@@ -354,7 +354,7 @@ Starting a new 13-month, 28-day calendar on Sunday, March 19, 2028 GC, offers un
 ---
 # References
 
-- **THE CALENDAR, IT’S HISTORY, STRUCTURE ADN IMPROVEMENT, BY ALEXANDAR PHILLIP**
+- **THE CALENDAR, IT’S HISTORY, STRUCTURE AND IMPROVEMENT, BY ALEXANDAR PHILLIP**
 - https://archive.org/details/calendaritshisto00phil/mode/2up
 - **THE BOOK OF JUBILEES**
 - https://dl.icdst.org/pdfs/files1/79210c539e32f6c4f106fab6fff3f0c4.pdf