“Effectiveness of Marketing Mix on the Business Performance of Selected Laundry Shop in Bagong Silang, Caloocan City: Vol.4, No.1”. 2024. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research 4 (1). https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/13690.