1] Igor Stojanov THE USE OF DIFFERENT DIAGNOSTIC TECHNIQUES IN CATTLE TUBERCULOSIS ERADICATION" - II međunarodni simpozijum i 18-to naučno-stručno savjetovanje agronoma Republike Srpske, 19.02.2013.
(https://ekonferencije.com/sr/rad/the-use-of-different-diagnosti/2033)

2] Igor Stojanov Monitor the presence of Nosema spp. and the problem of disappearing bee colonies" - II međunarodni simpozijum i 18-to naučno-stručno savjetovanje agronoma Republike Srpske, 07.02.2013.
(https://ekonferencije.com/sr/rad/monitor-the-presence-of-nosema/1921)

3] Igor Stojanov Potentional use of essential oils and their components in Nocardia mastitis treatment " - II međunarodni simpozijum i 18-to naučno-stručno savjetovanje agronoma Republike Srpske, 07.02.2013.
(https://ekonferencije.com/sr/rad/potentional-use-of-essential-o/1918)