1. dr G Sazhko (2016) "THE INFLUENCE OF RENEWABLE SOURCES OF ENERGY TO THE CLIMATE CHANGES IN THE BOSNIA&HERZEGOVINA; AND THE REPUBLIC OF SRPSKA" - Contemporary Materials 2016 - Savremeni Materijali
(https://ekonferencije.com/sr1/rad/the-influence-of-renewable-sou/4568)

2. dr G Sazhko (2016) "ELECTRICITY GENERATED BY POLYCRYSTALLINE SILICON PV MODULES AS FAÇADE ELEMENTS" - Contemporary Materials 2016 - Savremeni Materijali
(https://ekonferencije.com/sr1/rad/electricity-generated-by-polyc/4559)