Laokasikarn, Thipmontha, and Chinnaso Visitnitikija. “Marketing Mix Factors off Transportation and Parcel Services Between J&T Express and Kerry Express”. Journal of Arts Management 5, no. 1 (March 10, 2021): 45–57. Accessed May 13, 2024. https://so02.tci-thaijo.org/index.php/jam/article/view/245498.