Johan Hartama Forisa Sianturi, & Sri Setya Handayani. THE EFFECT OF WHATSAPP COMMUNICATION MEDIA AND DISCIPLINE ON THE EFFECTIVENESS OF WARRIOR’S PERFORMANCE IN SUPPORTING TASKS IN YONZIKON 13 / KE. IJRSM [Internet]. 2022 Sep. 30 [cited 2024 Dec. 22];9(9):1-10. Available from: http://ijrsm.com/index.php/journal-ijrsm/article/view/15