L'Engle, K., Sefa, E., Adimazoya, E. A., Yartey, E., Lenzi, R., Tarpo, C., . . . Ampeh, Y. (2018). Survey research with a random digit dial national mobile phone sample in Ghana: Methods and sample quality. Public Library of Science (PLoS).

L'Engle, Kelly, Eunice Sefa, Edward Akolgo Adimazoya, Emmanuel Yartey, Rachel Lenzi, Cindy Tarpo, Nii Lante Heward-Mills, Katherine Lew, và Yvonne Ampeh. Survey Research With a Random Digit Dial National Mobile Phone Sample in Ghana: Methods and Sample Quality. Public Library of Science (PLoS), 2018.

L'Engle, Kelly, et al. Survey Research With a Random Digit Dial National Mobile Phone Sample in Ghana: Methods and Sample Quality. Public Library of Science (PLoS), 2018.