H. R. Dhakal, “Comparative Study of Feeding Different Levels of Black Cumin (Nigella sativa) on Growth Performance of COBB-500 Broilers: Comparative Study of Feeding Different Levels of Black Cumin (Nigella sativa) on Growth Performance of COBB-500 Broilers”, AEXTJ, vol. 3, no. 2, Jun. 2019.