Gunggut H, Hing CK, Ag Mohd Saufi DSNS. When Doing is Believing: Internalizing the anti-litterbugs campaign. jABs [Internet]. 2018 Jul. 20 [cited 2024 Apr. 19];3(9):179-85. Available from: https://jabs.e-iph.co.uk/index.php/jABs/article/view/50