Sihombing, Surya Immanuel, Abdul Rahim Matondang, and Satia Negara Lubis. 2022. “THE ROLE OF LAND TRANSPORTATION IN SUPPORTING THE NATIONAL TOURISM STRATEGIC AREA OF LAKE TOBA”. International Journal of Social Science 2 (4):1813-18. https://doi.org/10.53625/ijss.v2i4.4143.