Yamaqupta, N., Pringviriya, N. and Kanchit, C. (2021) “Personal Factors and Service Quality Affecting Household Customers’ Positive and Negative Perspectives of Hatyai Provincial Waterworks Authority, Songkhla Province”, Parichart Journal, 34(1), pp. 59–75. available at: https://so05.tci-thaijo.org/index.php/parichartjournal/article/view/241396 (accessed: 15 September 2026).