Christin, C. (2024) “Keberkesanan dan faedah pengasingan kitar semula dalam masyarakat di Taman Universiti: Kajian kes. ”, Jurnal Penyelidikan Sains Sosial, 7(25), pp. 11–19. Available at: https://academicinspired.com/jossr/article/view/2730 (Accessed: 18 January 2025).