Lonergan, A. .; Gerber, S.-J. .; Streek, A. .; Sharry, J. . Parenting Groups, How Long Is Enough? The Efficacy of a Community-Run Parents Plus Early Years Program As a Preschool Parenting Intervention of Modifiable Duration. gjcpp 2024, 6 (1). https://doi.org/10.7728/0601201501.