Gemirangga, Rezhota, and Sugeng Purwanto. “Impact of Electronic Word of Mouth, Price Perception, and Product Quality on Purchase Decisions at Richeese Factory in Surabaya”. Golden Ratio of Mapping Idea and Literature Format, vol. 6, no. 2, Apr. 2026, pp. 1901-14, doi:10.52970/grmilf.v6i2.1840.