Ratana Chotesangasa, Supaporn Isriyodom, & Nitat Gongruttananun. (1994). Comparative Studies on Laying Performance and Egg Components of the Native and Commercial Laying Hens. Agriculture and Natural Resources, 28(1), 38–48. retrieved from https://li01.tci-thaijo.org/index.php/anres/article/view/241374