Author not established. Dr Seyoum Haregot. Date not established. EHREA archive: /library/documents/doc-f266492fe0321bd211bb1ffe/
[1] Dr Seyoum Haregot. Original source: http://www.ehrea.org/sey.php. Preserved original: /library/originals/6bb25c15cf516ce111867e50cf9742d03d82a71bfc81aa486c9475b5e30bf195.html. SHA-256: 6bb25c15cf516ce111867e50cf9742d03d82a71bfc81aa486c9475b5e30bf195