Muhammad, F. T., D. D. Musa, and J. D. Buah. “PRODUCTION OF BIOFERTILIZER USING GOAT DUNG, CHICKEN DUNG, PINEAPPLE PEELS AND CITRUS PEELS”. FUDMA JOURNAL OF SCIENCES, Vol. 7, no. 5, Nov. 2023, pp. 173 -75, doi:10.33003/fjs-2023-0705-2009.