Oppong-Nkrumah, O., Kaufman, J. S., Heymann, J., Frank, J., & Nandi, A. (2019). The impact of increasing the minimum legal age for work on school attendance in low- and middle-income countries. SSM Popul Health.

Oppong-Nkrumah, Oduro, Jay S. Kaufman, Jody Heymann, John Frank, och Arijit Nandi. "The Impact of Increasing the Minimum Legal Age for Work On School Attendance in Low- and Middle-income Countries." SSM Popul Health 2019.

Oppong-Nkrumah, Oduro, et al. "The Impact of Increasing the Minimum Legal Age for Work On School Attendance in Low- and Middle-income Countries." SSM Popul Health 2019.