Muhammad Da’i Kuncoro, Beby Karina Fawzeea Sembiring. The Effect Of Product Knowledge, Perceived Behavior Control, And Personal Norm On Purchase Intention Of Smes’ Recycled Products In Medan. Entrep. Small Bus. Res. [Internet]. 2023 Apr. 15 [cited 2026 Aug. 27];2(1):23-32. Available from: https://ecsis.org/index.php/esber/article/view/74