L. TIAN, Y. LI, L. ZHANG, and Q.-Z. LI, “Exogenous ß-galactosidase decreased lactose in caprine mammary epithelial cells”, Indian J of Anim Sci, vol. 83, no. 2, Feb. 2013, Accessed: Jun. 23, 2026. [Online]. Available: https://epubs.icar.org.in/index.php/IJAnS/article/view/27252