พันธมนัสโสภา ภ. . “TREND OF TUBTIM SIAM POMELO PLANTING OF FARMERS IN KLONG NOI SUBDISTRICT, PAK PHANANG DISTRICT, NAKHON SI THAMMARAT PROVINCE”. Journal of MCU Social Science Review, vol. 6, no. 2-04, Apr. 2020, pp. 587-96, https://so03.tci-thaijo.org/index.php/jssr/article/view/241628.