“PENGARUH MEMBAWA TUMBLER TERHADAP PENGURANGAN SAMPAH BOTOL PLASTIK DI LINGKUNGAN KAMPUS UIN TUNTUNGAN MEDAN SUMATERA UTARA”. JOURNAL OF SCIENCE AND SOCIAL RESEARCH 9, no. 3 (June 16, 2026): 3729–3734. Accessed September 3, 2026. https://jurnal.goretanpena.com/index.php/JSSR/article/view/6346.