“Optimasi Pemanfaatan Sampah Kertas Layak Jual di Kampus Universitas Andalas, Limau Manis Padang”, jse, vol. 9, no. 4, Sep. 2024, Accessed: May 31, 2026. [Online]. Available: http://jse.serambimekkah.id/index.php/jse/article/view/492