Sukkhavanit, Piyaphon, Kris Angkanaporn, and Suwanna Kijparkorn. “Effect of Roselle (Hibiscus sabdariffa Linn.) Calyx in Laying Hen Diet on Egg Production Performance, Egg Quality and TBARS Value in Plasma and Yolk”. The Thai Journal of Veterinary Medicine 41, no. 3 (June 26, 2013): 337–344. accessed September 15, 2026. https://he01.tci-thaijo.org/index.php/tjvm/article/view/9592.