diff --git a/content/roadmaps/113-qa/content/100-qa-basics/102-testing-approaches/102-black-box-testing.md b/content/roadmaps/113-qa/content/100-qa-basics/102-testing-approaches/102-black-box-testing.md
index 7668f9e78..05ea262d6 100644
--- a/content/roadmaps/113-qa/content/100-qa-basics/102-testing-approaches/102-black-box-testing.md
+++ b/content/roadmaps/113-qa/content/100-qa-basics/102-testing-approaches/102-black-box-testing.md
@@ -4,3 +4,4 @@ Black Box Testing is a software testing method in which the functionalities of s
 
 <ResourceGroupTitle>Free Content</ResourceGroupTitle>
 <BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.guru99.com/black-box-testing.html'>What is BLACK Box Testing? Techniques, Example & Types</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.softwaretestinghelp.com/black-box-testing/'>Black Box Testing: An In-Depth Tutorial With Examples And Techniques</BadgeLink>