Oktavian, Iqbal, et al. “The Influence of Lifestyle, Reference Group, and Electronic Word of Mouth on The Decision to Purchase Haircut Services Jack Barbershop City Kediri”. AKSIOMA : Jurnal Sains Ekonomi Dan Edukasi, vol. 2, no. 8, Aug. 2025, pp. 1856-68, https://doi.org/10.62335/aksioma.v2i8.1615.