Safa’at, Safa’at, Nuzulul Fatimah, and Leonard Adrie Manafe. 2023. “Marketing Strategy To Improve The Competitiveness Of A Chocolate Drink Business In Surabaya”. International Journal Of Education, Social Studies, And Management (IJESSM) 3 (1):13-27. https://doi.org/10.52121/ijessm.v3i1.135.