Laskar, Abdul Basith L. “Private Tutoring Expenditure at Different Levels of Education: An Explorative Analysis Using Case Study Approach”. International Journal of Psychosocial Rehabilitation 24, no. 4 (June 30, 2020): 10336–10345. Accessed June 20, 2025. https://www.psychosocial.com/index.php/ijpr/article/view/6261.