emeritus professor of geography at University of Colorado, Boulder, Colorado

Chancellor's Professor of Demography, University of California, Berkeley

Professor, Department of Population Science and Human Resource Development, Rajshahi …

CUNY School of Public Health & CUNY Institute for Demographic Research

Department of Statistics, Banaras Hindu University, Varanasi

Tokyo Gakugei University

University of Zimbabwe

Associate Professor, Fudan University

International Programs Center, US Census Bureau

Associate Professor in Department of Biostatistics and Health Informatics, SGPGIMS …