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Assefa, Yibeltal, Yalemzewod Assefa Gelaw, Peter S. Hill, Belaynew Wassie Taye, a Wim Van Damme. "Community Health Extension Program of Ethiopia, 2003–2018: Successes and Challenges Toward Universal Coverage for Primary Healthcare Services." Global Health 2019.

Assefa, Yibeltal, et al. "Community Health Extension Program of Ethiopia, 2003–2018: Successes and Challenges Toward Universal Coverage for Primary Healthcare Services." Global Health 2019.