Fiagbe, Yesuenyeagbe A.K., and Emmanuel W. Ramde. “FRICTION COEFFICIENT OF MUNICIPAL SOLID WASTE COMPONENTS”. International Journal of Engineering Technologies and Management Research 7, no. 7 (July 7, 2020): 1–7. Accessed February 1, 2023. https://www.granthaalayahpublication.org/ijetmr-ojms/ijetmr/article/view/IJETMR20_A06_2118.