Roy, Amitava, et al. “Comparative Assessment of Production and Hatchability Performance of Vanaraja, Rhode Island Red and Indigenous Poultry Birds under Backyard Rearing System at West Bengal”. International Journal of Livestock Research, vol. 8, no. 7, July 2018, pp. 296-03, http://ijlr.org/ojs_journal/index.php/ijlr/article/view/1730.