Imelda, Imelda, Dewi Puspaningtyas Faeni, Ratih Puspaningtias Faeni, Rinny Meidiyustiani, and Retno Fuji Oktaviani. 2020. “‘WAZZ Up Doc?’ Cost Efficient, User Friendly, Patient Trust Level Based on Convenience and the Use of Hypnotherapy Mobile Apps Method”. International Journal of Business Studies 3 (3):104-9. https://doi.org/10.32924/ijbs.v3i3.98.