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N.S. Mumthas, Shyma Usman Abdulla. Substandard Performance in Mathematical Problem Solving in Physics Among Higher Secondary School Students in Kerala - An Investigation on Teacher Perceptions and Student Difficulties. Issues Ideas Educ. [Internet]. 2019Mar.4 [cited 2024Mar.29];7(1):35-43. Available from: https://iie.chitkara.edu.in/index.php/iie/article/view/177