Professor of Chemical Engineering, Gadjah Mada University

Dep. Environmental Engineering, Mokpo National University

University of Minnesota Duluth; Civil Engineering; Professor Emeritus

PDF, Civil Engineering Department (Environmental Engg.), The Hong Kong Polytechnic

Assistant Professor, International Faculty of Applied Technology, Yibin University China

Postdoc at Zhejiang University

Lecturer, Botswana International University of Science and Technology

Assistant Professor, Sri Venkateswara College of Engineering, Tirupati

PhD

Research Scholar at National Institute of Technology Delhi