Problem Primer For The Olympiad by C R Pranesachar B J Venkatachala B J Venkatachala C S Yogananda pdf
https://drive.google.com/file/d/1SxXXKjb7Wlm0t2Z_jip9hXRaX8dkJjg7/view?usp=drivesdk
Congurence and similarity problem
https://drive.google.com/file/d/13eFYoWZEDNPqFeOyQaQDdlqXXJcpD3hA/view?usp=drivesdk
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