Rittiboonchai W. Marketing mix factors affecting the frequency and loyalty in online transactions of Nakhon Pathom teenagers. Interdiscip. Res. Rev. [internet]. 2021 Feb. 27 [cited 2025 Apr. 16];16(1):32-5. available from: https://ph02.tci-thaijo.org/index.php/jtir/article/view/242171