Jabo, M.S.M., and A. Gado. 2017. “Use of Double-Hurdle Model to Crop Residues Usage Among Farming Households in Argungu Local Government Area, Kebbi State, Nigeria”. Archives of Agriculture and Environmental Science 2 (2):72-78. https://journals.aesacademy.org/index.php/aaes/article/view/02-02-03.