Sathinee Jongdoen , Wongchai Anupong , Ke-Chung Peng. 2020. “TECHNICAL EFFICIENCY OF OFF-SEASON RICE PRODUCTION IN NORTHERN THAILAND”. PalArch’s Journal of Archaeology of Egypt / Egyptology 17 (6):12587 -95. https://archives.palarch.nl/index.php/jae/article/view/3176.