diff --git a/pages/common/printf.md b/pages/common/printf.md
index f18439e2f..88224cd94 100644
--- a/pages/common/printf.md
+++ b/pages/common/printf.md
@@ -1,6 +1,7 @@
 # printf
 
 > Format and print text.
+> More information: <https://www.gnu.org/software/coreutils/manual/html_node/printf-invocation.html>.
 
 - Print a text message: