THE EFFECT OF PRODUCTION COSTS, OPERATIONAL COSTS, MARKETING COSTS AND PROMOTIONAL COSTS ON NET PROFIT WITH SALES VOLUME AS INTERVENING VARIABLES IN PT GUDANG GARAM TBK 2015-2019. Balance [Internet]. 2022 Jan. 13 [cited 2026 Jan. 24];2(02):80-101. Available from: https://ejournal.uinsatu.ac.id/index.php/jas/article/view/5376