Irawan A. How to Outsmart Investment Scam? (Comparing Legitimate vs Scam Investment using Business Model Canvas and Value Proposition Design). IJTB [Internet]. 2019 Oct. 29 [cited 2026 Apr. 17];3(2):87-93. Available from: https://jbme.esqbs.ac.id/index.php/IJTB/article/view/249