M. S. Harahap, R. Khadafi, E. J. Hasibuan, A. Saputra, S. Hardiyanto, and F. H. Lubis, “Social media and optimization of the promotion of Lake Toba tourism destinations in Indonesia”, Comput Sci Inf Technol, vol. 4, no. 3, pp. 208–216, Nov. 2023.