P. Kitundu, M., Msuya, N. and Katima, Z. (2025) “Production of Potassium-Rich Biofertilizer from Composted Banana Peels and Watermelon Rinds ”, Tanzania Journal of Engineering and Technology, 44(1), pp. 118 - 136. doi: 10.52339/tjet.v44i1.1128.