Methods for Determining the Release of Greenhouse Gas Emissions from Pig and Poultry Production in the Republic of Bulgaria. Global Journal of Science Frontier Research, [S. l.], v. 14, n. D5, p. 39–43, 2014. Disponível em: https://www.journalofscience.org/index.php/GJSFR/article/view/1184. Acesso em: 15 aug. 2026.