Irmayasari, I., Tindangen, M., & Palenewen, E. (2021). THE EFFECTIVENESS OF THE VIRTUAL LEARNING MEDIA GRAPH COLORING LABORATORY. IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW, 8(1), 35-44. Retrieved from http://103.8.12.212:33180/unj/index.php/ijer/article/view/25140