"EVALUATION OF EARTHWORM AS BIOFILTRATION AGENT IN ORGANICALLY POLUTED WATER" (2018) FULafia Journal of Science and Technology, 4(2), ص 58–63. موجود في: https://lafiascijournals.org.ng/index.php/fjst/article/view/255 (تاريخ الوصول: 17 مايو 2026).