1. Institute of Organic Technology, Faculty of Technology and Metallurgy, Ss. Cyril and Methodius University in Skopje, Rudjer Boskovic 16, 1000 Skopje, Republic of North Macedonia
2. Institute of Applied Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy, Mother Theresa 47, Ss. Cyril and Methodius University in Skopje 1000 Skopje, Republic of North Macedonia
3. Scientific Tobacco Institute-Prilep, University “St. Kliment Ohridski”-Bitola, Kicevska bb, 7500 Prilep, Republic of North Macedonia