Promtes, T., R. . Klamgprapan, T. . Supakitjumpnong, A. Savangkan, T. . Pranakorn, and M. . Chorpsoongern. “Industral Management : A Case Study of Fhoenix Pulp & Paper Public Company Limited, Kud Nam Sai Sub-District, Nam Pong District, Khonkaen Province”. Journal of Graduate MCU KhonKaen Campus, vol. 11, no. 1, Mar. 2024, pp. 305-17, https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/268378.