sembiring AS. Pengembangan Bisnis Tour and Travel di Masa Pandemi COVID 19 ( Studi kasus : Pt. Milala Wisata). JURITI PRIMA [Internet]. 2021 Jul. 7 [cited 2025 Oct. 19];4(2). Available from: https://jurnal.unprimdn.ac.id/index.php/juriti/article/view/1732