Kijparkorn, Suwanna, Hatairat Plaimast, and Somporn Wangsoonoen. 2010. “Sano (Sesbania Javanica Miq.) Flower As a Pigment Source in Egg Yolk of Laying Hens”. The Thai Journal of Veterinary Medicine 40 (3):281-87. https://he01.tci-thaijo.org/index.php/tjvm/article/view/35719.