Journal Article
Stein, Aryeh, Jere Behrman, Ann DiGirolamo, Rubén Grajeda, Reynaldo Martorell, Agnes Quisumbing, and Usha Ramakrishnan.
"Schooling, educational achievement, and cognitive functioning among young Guatemalan adults." The Human Capital 2002--04 Study in Guatemala: A Follow-up to the INCAP Longitudinal Study 1969--77 26, no. 2 Supplement 1 (2005): 46.