Pantian, Sarayut, Rinrada Puangamphai, and Apichaya Buata. 2022. “Mathematical Model for Predicting Red Oak Lettuce Growth”. Journal of Science and Technology CRRU 1 (2). Chiangrai, Thailand:38-44. https://li01.tci-thaijo.org/index.php/jstcrru/article/view/256593.