Shittu, E. A., Alobo, A. I., and Buhari, F. Z., “GROWTH AND YIELD RESPONSE OF OKRA (Abelmoschus esculentus L.) AS AFFCETED BY VARYING RATES OF NPK FERTILIZER AND COWDUNG MANURE IN A SEMI ARID ECOLOGY”, JASD, vol. 8, no. 2, pp. 36–46, Jun. 2025.