HussainiAliyu Z., Ephraim Bello, and MaduMisali J. “DESIGN MODIFICATION AND SIMULATION OF A STAIR CLIMBING TROLLEY”. FUDMA JOURNAL OF SCIENCES 6, no. 1 (April 1, 2022): 21 - 26. Accessed November 23, 2024. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/669.