Rizwan Khan RSK dixit,. A study to assess knowledge regarding substance abuse among higher secondary students in a selected school of Dehradun with a view to develop an information booklet regarding substance abuse. IJSRE [Internet]. 2019 Sep. 18 [cited 2024 Dec. 23];7(9). Available from: http://ijsae.in/index.php/ijsae/article/view/953