“IMPLEMENTASI VERTEX GRAPH COLOURING, PARTICLE SWARM OPTIMIZATION, DAN CONSTRAINT BASED REASONING UNTUK UNIVERSITY TIMETABLING PROBLEM (STUDI KASUS: FTI UNTAR)”. Jurnal Ilmu Komputer Dan Sistem Informasi, vol. 1, no. 1, Jan. 2013, pp. 97-104, https://doi.org/10.24912/jiksi.v1i1.3078.