Yulianto, T. (2015) “PENERPAN PETRI-NET PADA MODEL GERAKAN BERJALAN TROTTING ROBOT BERKAKI EMPAT (QUADRUPED)”, UJMC (Unisda Journal of Mathematics and Computer Science), 1(01), pp. 85 - 94. doi: https://doi.org/10.52166/ujmc.v1i01.440.