Johnson, D.W., Johnson, R.T. and Smith, K.A. (2014) Cooperative Learning: Improving University Instruction by Basing Practice on Validated Theory. Journal on Excellence in University Teaching, 25, 1-26.
 Conway, A., Fatisson, P.-E., Eickemeyer, P., Cheng, J. and Peters, D. (2012) Urban Micro-Consolidation and Last Mile Goods Delivery by Freight-Tricycle in Manhattan: Opportunities and Challenges. Transportation Research Board 91st Annual Meeting, Washington DC, 22-26 January 2012.
 Hanze, M. and Berger, R. (2007) Cooperative Learning, Motivational Effects, and Student Characteristics: An Experimental Study Comparing Cooperative Learning and Direct Instruction in 12th Grade Physics Classes. Learning and Instruction, 17, 29-41. https://doi.org/10.1016/j.learninstruc.2006.11.004
 Hooker, D. (2011) Small Peer-Led Collaborative Learning Groups in Developmental Math Classes at a Tribal Community College. Multicultural Perspectives, 13, 220-226.
 Fuks, H., Gerosa, M. A., & de Lucena, C. J. P. (2002). The Development and Application of Distance Learning Courses on the Internet. Open Learning, 17, 23-38.
 Zakaria, E., Chin, L.C. and Daud, M.Y. (2010) The Effects of Cooperative Learning on Students’ Mathematics Achievement and Attitude towards Mathematics. Journal of Social Sciences, 6, 272-275.