M. A. F. Nasution; A. Atabany; B. P. Purwanto; 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, v. 12, n. 2, p. 50-59, 30 Jun. 2024.