LIN, Sara; MUN, Christie; MOORE, Jesse. Expanding the Reach of Youth Mentoring Through a Scalable Site-Based Model: Big Brothers Big Sisters Southeastern Pennsylvania’s Beyond School Walls Program. Social Innovations Journal, [S. l.], n. 3, 2010. Disponível em: https://socialinnovationsjournal.com/index.php/sij/article/view/7645. Acesso em: 3 may. 2026.