Merjani, Abdullah, 		Ningrum, Reva, AND 		Sumarya, Edi.
" ANALYSIS OF THE BLUE OCEAN STRATEGY ENGINEERING APPROACH TO INCREASE SALES IN BUSINESS COMPETITION (CASE TUDI ATAMATI COFFEE BATAM)" <em>PROFISIENSI: Jurnal Program Studi Teknik Industri</em> [Online], Volume 10 Number 2 (29 December 2022)