editors, Tirussew Teferra, Aklilu Dalelo, Mekasha Kassaye ; language editors, Alamerew G/Mariam ... [et al.] ; [organized by College of Education, Addis Ababa University]College of Education, Addis Ababa University[2009?]
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- 著者標目...russew Teferra Aklilu Dalelo Mekasha Kassaye Alamerew G/Ma...