Utami DS, Wati NL, . S, Nurjanah N. The Effect of Assertive Training towards Self-assertiveness among Female Adolescent of Bullying in Junior High School . KLS [Internet]. 2019Oct.9 [cited 2024Apr.19];4(13):716–725. Available from: https://knepublishing.com/index.php/KnE-Life/article/view/5329