@BOOK{NAP9041, title = "Information Systems and Measurement for Assessing Program Effects: Implications for Family Planning Programs in Developing Countries", doi = "10.17226/9041", url = "https://nap.nationalacademies.org/catalog/9041/information-systems-and-measurement-for-assessing-program-effects-implications-for", year = 1994, publisher = "The National Academies Press", address = "Washington, DC" }