Oyelade, A.O. 2019. AN ECONOMIC ANALYSIS OF SOLID WASTE MANAGEMENT OF IBADAN METROPOLIS, OYO STATE: EVIDENCES FROM VALUE BELIEF NORM (VBN) AND WILLINGNESS-TO-PAY THEORY. International Journal of Research -GRANTHAALAYAH. 7, 4 (Apr. 2019), 106–125. DOI:https://doi.org/10.29121/granthaalayah.v7.i4.2019.880.