HEPATITIS B VIRUS – INFECTIOUS IN DEBRE BERHAN TOWN, ETHIOPIA ANALYZED BY MATHEMATICAL MODELING CONCEPTS

Birhanu Baye Terefe, Department of Mathematics, Debre Berhan University, Ethiopia
Temesgen Tibebu Mekonen, Department of Mathematics, Debre Berhan University, Ethiopia

SAFETY SKILLS REQUIRED FOR EFFECTIVE OPERATION OF FOUNDRY CRAFT WORKSHOP IN TECHNICAL COLLEGES

Oguejiofor Victor Ikechukwu, Department of Mechanical Engineering, University of Nigeria, Nsukka