M. A. F. Nasution, A. Atabany, B. P. Purwanto, and W. A. Zahra. “Milk Production and Morphometrics Derived from Digital Images of Friesian and Holstein Cows in Different Lactation Periods”. Jurnal Ilmu Produksi Dan Teknologi Hasil Peternakan, Vol. 12, no. 2, June 2024, pp. 50-59, doi:10.29244/jipthp.12.2.50-59.