Ngwe, J. E. (2013). Social Work Research Methods: An Invitation. Boston, MA: Pearson publishing company (ISBN-13: 978-1-269-56132-7. USA: Pearson publishing company

Ngwe, J. E. (2011). Social Work Research Practicum: A Step-by-Step Planning Handbook (Second edition). Boston, MA: Pearson publishing company (ISBN 0-536-29551-4). USA: Pearson publishing company

Ngwe, J. E. (2010). Social Work Research Practicum II: A User-friendly Data Analysis and Statistics Handbook (Second edition). USA: Pearson publishing company

Ngwe, J. E. (2007). Social Work Research Practicum II: A User-friendly Data Analysis and Statistics Handbook”. Boston, MA: Pearson publishing company (ISBN 0-536-338-124)

Ngwe, J. E. (2006). Social Work Research Practicum: A Step-by-Step Planning Handbook. Boston, MA: Pearson publishing company (ISBN 0-536-29551-4).

Ngwe, J. E. & Elechi, O. O. (2013). Human Trafficking: The modern day slavery of the 21st century. African Journal of Criminology and Justice Studies: AJCJS, 6 (1 & 2): 95-112

Elechi, O. O., Okosun, T. Y. & Ngwe, J. E. (2007). Factors Vitiating Against the Effectiveness of the Nigerian Police in Combating the Criminal Exploitation of Children and Women. African Journal of Criminology & Justice Studies (AJCJS), 3(1): 1-49.

Eisuke, S., Ngwe, J. E., & Flay, B. R. (2005). Evaluation of the effects of the Aban Aya Youth Project in reducing violence among African American adolescent males using Latent Class Growth Mixture Modeling Techniques. Evaluation Review: A Journal of Applied Social Research, 29(2): 128-148.

Ngwe, J. E., Li, Q., Flay, B. R., & Eisuke, S. (2004). Violence prevention among African American Adolescent Males: Test of mediating mechanisms. American Journal of Health Behavior, 28(Supplement 1): 24-37.

Ngwe, J. E. (1999). Peer Mediation in Elementary Schools: Toward a comprehensive framework. Unpublished Doctoral Dissertation. University of Illinois at Chicago, Illinois

Ngwe, J. E. (1987). Assessment of education needs of health educators in Manitoba, Unpublished master's thesis, University of Manitoba, Winnipeg, Canada.

Ngwe, J. E. (1987). Education Needs of Health Educators in Manitoba. Journal of Education Administration and Foundation, 2 (1): 55-60 (ED# 164 746)