Gamage, Sumith, Tharika Weerakoon, and Sampath Kokila. “Case Study: A Mobile ERP to Handle Multiple Sand Mining Sites (Welithota App)”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 50, no. 2 (March 17, 2020): 33–42. Accessed October 8, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/10923.