sembiring, Andes Stefen. 2021. “Pengembangan Bisnis Tour and Travel Di Masa Pandemi COVID 19 ( Studi Kasus : Pt. Milala Wisata)”. Jurnal Ilmiah Teknik Industri Prima (JURITI PRIMA) 4 (2). https://doi.org/10.34012/juritiprima.v4i2.1732.