Rifdah, Azizah, 		Siahaan, Clarissa Zion, 		Sinaga, Elsa, AND 		Simanjuntak, Yohanna.
" VERTICAL INTEGRATION PRACTICE: THE CASE OF PT SOLUSI TRANSPORTASI INDONESIA AND PT TEKNOLOGI PENGANGKUTAN INDONESIA" <em>The Lawpreneurship Journal</em> [Online], Volume 1 Number 1 (3 March 2021)