Dol, Sunita M., and S. A. Halkude. “An Effectiveway to Improve Problem Solving Skill Using TPS, T24S and T21S:A Comparative Study”. Journal of Engineering Education Transformations (January 1, 2017): 219–228. Accessed December 5, 2025. https://journaleet.in/index.php/jeet/article/view/1437.