Ndruru DD, Sembiring MB, Purba B. Strategies Used by Microentrepreneurs to Develop Their Businesses in the Sipiso-Piso Tourist Area. IJAR [Internet]. 2026 Jul. 17 [cited 2026 Jul. 17];5(7):1081-98. Available from: https://journal.formosapublisher.org/index.php/ijar/article/view/16782