Implementation of Lean Office and Industry 4.0 Technologies to Enhance Administrative Efficiency, Productivity, and Organizational Sustainability: A Case Study in a Public Valuation Office. Journal of Research and Technology, [S. l.], v. 11, n. 2, p. 287–296, 2026. DOI: 10.55732/858cy611. Disponível em: https://journal.unusida.ac.id/index.php/jrt/article/view/1687. Acesso em: 19 oct. 2026.