Mobile Application System For Point of Sales in Coffee Sales at Langit Coffee Space. Journal of Innovation and Technology Polbeng Series on Informatics (INOVTEK Polbeng - Seri Informatika), [S. l.], v. 9, n. 2, p. 916–926, 2024. DOI: 10.35314/tb6adx44. Disponível em: http://210.79.191.38/index.php/ISI/article/view/214.. Acesso em: 8 jul. 2026.