O. TOGLA, S. M. DEB, S. KADYAN, S. KUMAR, P. B. NANDHINI, and A. MUKHERJEE, “Association of milk production and udder type traits with polymorphism of phosphorylase kinase regulatory subunit alpha-2 gene in Sahiwal cattle”, Indian J of Anim Sci, vol. 91, no. 8, pp. 644–649, Sep. 2021, doi: 10.56093/ijans.v91i8.115923.