Almohaimmeed, Bader M. “Internal Service Quality and External Service Quality Using Two Versions of SERVQUAL Scale: An Empirical Evidence from Five Malls in the Capital City of Saudi Arabia”. Business: Theory and Practice 20 (March 26, 2019): 158-169. Accessed November 17, 2024. https://mma.vgtu.lt/index.php/BTP/article/view/10478.