Yasin SM, Selamat MI, Zubillah A, Ismail N. Effects of Knowledge on Second-hand Smoke on Support for Tobacco Free Policy among University Students. jABs [Internet]. 2021 Apr. 24 [cited 2024 Apr. 19];6(18):19-33. Available from: https://jabs.e-iph.co.uk/index.php/jABs/article/view/381