Part 2 Problem Primer for the Pre Regional Mathematical Olympiad from Page 174 Kunal Singh Kali Prasad Tripathy Prism ISBN 938650676-9Kunal Singh Kali Prasad Tripathy2019PDF
Part 1 Problem Primer for the Pre Regional Mathematical Olympiad Upto Page 173 Kunal Singh Kali Prasad Tripathy Prism ISBN 938650676-9 1Kunal Singh Kali Prasad Tripathy2019PDF