Spasova, V. ., and S. Zhelev. “HOW SOME INTERNAL FACTORS INFLUENCE CONSUMER BEHAVIOUR FOR PURCHASING CIGARETTES ON THE BULGARIAN MARKET: HOW SOME INTERNAL FACTORS INFLUENCE CONSUMER BEHAVIOUR FOR PURCHASING CIGARETTES ON THE BULGARIAN MARKET”. JOURNAL SCIENTIFIC AND APPLIED RESEARCH, vol. 4, no. 1, Mar. 2023, pp. 121-6, doi:10.46687/jsar.v4i1.89.