Sarkar K, Roy SK, Singh R. A study of substance abuse among male engineering students staying at hostels in a township near Kolkata. Int J Community Med Public Health [Internet]. 2018 Jul. 23 [cited 2025 Mar. 28];5(8):3304-10. Available from: https://www.ijcmph.com/index.php/ijcmph/article/view/3480