Sitepoe, M. (1997). Usaha mencegah pencemaran udaraMangku Sitepoe. Grasindo.
Chicago Style (17th ed.) CitationSitepoe, Mangku. Usaha Mencegah Pencemaran UdaraMangku Sitepoe. Grasindo, 1997.
MLA (8th ed.) CitationSitepoe, Mangku. Usaha Mencegah Pencemaran UdaraMangku Sitepoe. Grasindo, 1997.
Warning: These citations may not always be 100% accurate.