N. S. Lubis, C. B. Zega, R. Riadi, and D. A. Anindya, “THE EFFECT OF LEARNING EFFECTIVENESS, LEARNING INDEPENDENCE, LEARNING DISCIPLINE, AND LEARNING MOTIVATION ON UNDERSTANDING BASIC CONCEPTS OF COST ACCOUNTING AT UNIVERSITIES IN MEDAN WITH SELF EFFICACY AS MODERATION”, Jurnal Ekonomi, vol. 12, no. 02, pp. 584–596, Apr. 2023.