The Effects of a Group Contingency Intervention on Academic Engagement and Problem Behavior of At-Risk Students
Crossref DOI link: https://doi.org/10.1007/BF03391723
Published Online: 2017-06-01
Published Print: 2008-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Thorne, Stephanie
Kamps, Debra