S. D. N. Siahaan, E. . Setiana, L. S. . Saragih, and H. P. . Sitompul, “Practical Analysis of Multimodality Based Student Book Development to Improve English Skill of Entrepreneurship Study Program Students at Universitas Negeri Medan”, EAJMR, vol. 2, no. 10, pp. 4273–4282, Nov. 2023.