Saheem, Niwadee, Sarawuth Chesoh, and Apiradee Lim. 2015. “Factor Analysis for Clustering and Estimating Fish Distribution Pattern in a Tropical Estuary in Southern Thailand”. Agriculture and Natural Resources 49 (2). Bangkok, Thailand:188-99. https://li01.tci-thaijo.org/index.php/anres/article/view/243561.