diff --git a/stock/analysis/AnalyzerSqlite.py b/stock/analysis/AnalyzerSqlite.py
index 5bf05c0..ddc6c1a 100644
--- a/stock/analysis/AnalyzerSqlite.py
+++ b/stock/analysis/AnalyzerSqlite.py
@@ -114,6 +114,7 @@ class AnalyzerSqlite:
         return fnguide
 
     def draw(self, stock):
+        # 참고) https://sjblog1.tistory.com/45
 
         ymd = list(reversed(stock['ymd']))
         open = list(reversed(stock['open']))