“EFFECT OF VITAMINS NICOTINIC ACID, PYRIDOXINE AND Co2+, Mn2+, Cu2+ METAL-IONS ON CRITICAL MICELLE CONCENTRATION OF ANIONIC, CATIONIC AND NONIONIC SURFACTANTS IN AQUEOUS SOLUTIONS”, Proc. YSU B: Chem. Biol. Sci., vol. 49, no. 2 (237), pp. 3–8, Jul. 2015, doi: 10.46991/PYSUB.2015.49.2.003.