Hock LK. Perceived Norms and Smoking Status among Secondary School Students in Kota Tinggi, Johor, Malaysia. Int. J. Pub. Health Res. [Internet]. 2012 Mar. 1 [cited 2024 Apr. 28];2(1):85-92. Available from: https://spaj.ukm.my/ijphr/index.php/ijphr/article/view/128