G.H. Giloyan, L.G. Ter-Isahakyan, N.A. Kasumyan. “Genetic Evaluation of Fleckvieh and Holstein Heifers Per Their Origin and Ancestors’ Productivity”. AgriScience and Technology, vol. 1, no. 77, Aug. 2023, https://journal.anau.am/index.php/anau/article/view/335.