00621naa#a2200169#i#450# EN\\bibl\93326 20250111150656.6 2221-3260 20241231b2024####ek#y0engy0150####ca RU Analysis of the effectiveness of messenger marketing as an actual way to increase sales against the background of the growing popularity of messengers Journal article Yaroslavl Yaroslavl State Technical University 2024 8 с. Journal article local Kovalchuk Marina Aleksandrovna Remezov Alexandr Konstantinovich comincon.ru