– On his new book “ነጠላ ተባራይ ንፍቅ ስነ-ስሌት – Single Variable Differential Calculus”..- On his new book “ነጠላ ተባራይ ንፍቅ ስነ-ስሌት – Single Variable Differential Calculus”.

Interview with Prof Bahiru Kassahun

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