Rahadi, A. P., A. M. Simbolon, E. B. Pani, and Y. Kristanto. “Application of Graph Coloring in the Course Scheduling Case of Mathematics Education Department in Unai: CASE OF MATHEMATICS EDUCATION DEPARTMENT OF UNAI”. Abstract Proceedings International Scholars Conference, vol. 7, no. 1, Dec. 2019, pp. 1399-10, doi:10.35974/isc.v7i1.815.