Artina Ahmad, Nursultan Akbar Ruhimat, Fahrul Latingara, Abdul Rahmat, Ronal Hutagalung. IMPLEMENTATION OF THE SPIRIT OF LEADERSHIP THROUGH ECOBRICK ACTIVITIES. Wor.Bul.Soc.Sci. [Internet]. 2022Dec.30 [cited 2024Nov.4];17:189-92. Available from: https://scholarexpress.net/index.php/wbss/article/view/1891