HOU, Chengwei. Research on the Most Favorable Price and Expected Benefits of Government Purchasing Services from Social Organizations. Academic Journal of Science and Technology, [S. l.], v. 12, n. 1, p. 343–346, 2024. DOI: 10.54097/8t9dt509. Disponível em: https://drpress.org/ojs/index.php/ajst/article/view/25050. Acesso em: 1 may. 2026.