kookkaew, pathompong, Sinet, T., & Phupha , S. (2026). The Influence of Service Marketing Mix and Perceived Service Quality on the Decision to Use Parcel Delivery Services by Online Entrepreneurs: A Case Study of the Thai–Cambodian Border Trade Zone in Sa Kaeo Province. Rajamangala University of Technology Tawan-ok Social Science Journal, 15(1), 159–173. https://doi.org/10.63271/rmuttosj.v15i1.280357