Tegang, Simon Pierre, Gideon Emukule, Samuel Wambugu, Inoussa Kabore, and Peter Mwarogo. 2009. “A Comparison of Paper-Based Questionnaires With PDA for Behavioral Surveys in Africa: Findings from a Behavioral Monitoring Survey in Kenya”. Journal of Health Informatics in Developing Countries 3 (1). https://www.jhidc.org/index.php/jhidc/article/view/28.