Lam, David, Leticia Marteleto, and Vimal Ranchhod. 2013. "The Influence of Older Classmates on Adolescent Sexual Behavior in Cape Town, South Africa." Studies in Family Planning, 44(2): 147-167. PMCID: PMC3788580.
Marteleto, Leticia, David Lam, and Vimal Ranchhod. 2008. "Sexual Behavior, Pregnancy, and Schooling Among Young People in Urban South Africa." Studies in Family Planning, 39(4): 351-368. PMCID: PMC2792879.
Lam, David, and Leticia Marteleto. 2008. "Stages of the Demographic Transition from a Child's Perspective: Family Size, Cohort Size, and Children's Resources." Population and Development Review, 34(2): 225-252. PMCID: PMC2546613.