Behera, T.K., H. Tiwari, Swati Saha, and Preeti Singhal. 2013. “Variation in Chlorophyll and Carotenoids Content in Bitter Gourd Genotypes at Edible Maturity Stage”. Indian Journal of Horticulture 70 (04):599-602. https://journal.iahs.org.in/index.php/ijh/article/view/2080.