IMPACT OF MANAGEMENT AND MARKETING PRACTICES ON SERVICE EFFECTIVENESS IN NON-PROFIT ORGANIZATIONS: A QUANTITATIVE STUDY OF LIBRARIES. Center for Management Science Research, [S. l.], v. 4, n. 3, p. 96–113, 2026. Disponível em: https://cmsrjournal.com/index.php/Journal/article/view/823. Acesso em: 10 mar. 2026.