FAHIM, A, et al. “Standardization of Pulsation Ratios in Crossbred Cows Milked in Automated Herringbone Milking Parlour”. The Indian Journal of Animal Sciences, vol. 88, no. 12, Dec. 2018, pp. 1416-8, https://doi.org/10.56093/ijans.v88i12.85810.