Suwanti R. ANALYSIS OF THE INFLUENCE OF BUSINESS PROMOTION ON SALES AT PONDOK LAUNDRY MAKASSAR USING SIMPLE LINEAR REGRESSION ANALYSIS. Jurnal Hasil Penelitian/JEINSA [Internet]. 2025Dec.28 [cited 2026Jan.31];4(2):530-6. Available from: https://www.jeinsa.com/index.php/jurnal/article/view/332