S. C. Boromeus, R. A. Malau, D. Andriani, and L. S. Hiariey, “QUALITY ASSURANCE IN LEARNING SUPPORT IN DISTANCE EDUCATION SYSTEM: AN EFFORT TO PROVIDE QUALIFIED HIGHER EDUCATION IN INDONESIA”, j. pendidik. Terbuka Dan Jarak Jauh, vol. 14, no. 2, pp. 110–119, Aug. 2013.