00427nam a22001337a 4500003000500000038001800005082000800023100002400031245007300055264003500128650003100163700004100194856005800235NUST  aNusrat Nadeem  a200  aKhan, Taimoor Hasan  aDeveloping Secure CAPTCHA for Online Security/cTaimoor Hasan Khan,   aIslamabad:bSEECS NUST.c2025.  aMS- Electrical Engineering  aSupervisor: Dr. Muhammad Latif Anjum  u http://10.250.8.41:8080/xmlui/handle/123456789/54812