Rahtika, I. P. G. S., Suarta, I. M., Rusmariadi, I. K. and Hardianta, I. M. G. R. P. (2022) “A design of a cocoa bean sorting machine”, International research journal of engineering, IT & scientific research, 9(1), pp. 14–20. doi: 10.21744/irjeis.v9n1.2254.