https://libcat.egst.edu.et//cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Ayele%20Tirfie.%22&sort_by=relevance&format=rss 3 0 50 ISBN:(paperback) : https://libcat.egst.edu.et//cgi-bin/koha/opac-detail.pl?biblionumber=1498 By Ayele Tirfie Woldemichael..
Addis Ababa, Ethiopia : Ayele Tirfie Woldemichael, 2013 .
x, 248 p. : 24 cm..
(paperback) :

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Addis Ababa : : | Addis Ababa : Rohobot Printers Plc,, | Rohobot Printers Plc, 2016 .
xxi, 260 p. : 25 cm..
9789994497751 (pbk) :

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Addis Ababa.: : Rohobot Printers plc, 2023 .
xv, 191 p. ; 25 cm..
9789999099554 (pbk) :

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