Ratchadaporn Thongheam, Aunchulee Thongjub, Wanna Malaphan, & Patoomporn Chim–anage. (2008). Probiotic Production by Mixed Culture of Lactic Acid Bacteria and Yeast. Agriculture and Natural Resources, 42(5), 277–284. retrieved from https://li01.tci-thaijo.org/index.php/anres/article/view/244607