Voytovych, N., and A. Bulavinets. “Formation of the Product Portfolio of the Enterprise”. Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies. Series Economical Sciences 23, no. 98 (December 23, 2021): 17-22. Accessed May 28, 2022. https://nvlvet.com.ua/index.php/economy/article/view/4269.