Bankova, R. et al. 2019. A COMPARATIVE STUDY OF THE GROWTH PROMOTER EFFECTIVENES FOR DIFFERENT DRUG FORMULATIONS, CONTAINING OREGANO OIL FOR BROILER CHICKENS. TRADITION AND MODERNITY IN VETERINARY MEDICINE. 4, 1 (Jun. 2019), 3–8. DOI:https://doi.org/10.5281/zenodo.2596423.