Onovughakpo Augustine (PhD) M, Samuel A. CUSTOMER SERVICE MANAGEMENT PRACTICES AND BUSINESS EXPANSION OF SMALL AND MEDIUM-SIZED ENTERPRISES IN UGHELLI, DELTA STATE, NIGERIA. bj [Internet]. 2026 Jun. 8 [cited 2026 Jun. 8];. Available from: https://mail.bwjournal.org/index.php/bsjournal/article/view/4053