Addison, J.T. and C. Schnabel, 2003. International handbook of trade unions. Cheltenham: Edward Elgar Publishing
Adefolaju, T., 2013. Trade union in Nigeria and the challenge of internal democracy. Mediterranean Journal of Social Sciences, 4(6): 97-104.
Bakke, E.W., 1945. Why workers join unions. Personnel, 22(1): 2-11.
Barrientos, S. and S. Smith, 2007. Do workers benefit from ethical trade? Assessing codes of labour practice in global production systems. Third World Quarterly, 28(4): 713-729.Available at: https://doi.org/10.1080/01436590701336580.
Chand, S., 2016. Why do workers join a trade union? (reasons). Available from http://www.yourarticlelibrary.com/trade-unions/why-do-workers-join-a-trade-union-reasons/35468 .
Collins, E.N., 2013. Labour unionism and its effects on organizational productivity: A case study of jos international breweries (JIB) PLC, Nigeria. African Research Review, 7(4): 36-48.Available at: https://doi.org/10.4314/afrrev.v7i4.3.
Gangurde, S.G., 2014. The Indian trade union movement: New challenges. Indian Streams Research Journal, 4(6): 1-9.
Heneman, H.G., D.P. Schwab, J.A. Fossum and L.D. Dyer, 1983. Personnel/human resource management. Homewood, Illinois: Richard D. Irwin Inc.
Hyman, R., 2001. Understanding European trade unionism: Between market, class and society. London: Sage.
Jaywant, D., 2014. Politicisation of trade union movement in India now having its backlash. Available from https://www.indiatoday.in/magazine/economy/story/19791031-politicisation-of-trade-union-movement-in-india-now-having-its-backlash-822477-2014-02-20 .
Muya, J. and P.C. Simotwo, 2015. Role of trade unions in the enhancement of peaceful work relations foe efficient conflict management in public universities in Kenya. International Journal of Science and Research, 4(9): 610-613.
Okojie, J.O., 2011. Organizational behaviour and management. Benin City: Osasu Publishers, University of Benin.
Olson, M., 1965. The logic of collective action: Public goods and the theory of groups. Cambridge Mass: Harvard University Press.
Otobo, D. and M. Omole, 1987. Readings in industrial relations in Nigeria. Lagos: Malthouse Press Limited.
Peter, W.J., 2000. The role of labour unions in a changing world environment: A comparative analysis. Economic Development Institute Information Booklet Series I.
Rajesh, S. and P. Manoj, 2015. Politicization of trade unions and challenges to industrial relation in India: A study with a focus on norther Karala. International Journal of Business Administration and Research Review, 1(2): 45-57.
Singh, I. and V. Kulkarni, 2013. Trade unionism in India-perceptions & future. Indian Journal of Industrial Relations, 49(1): 35-43.
Singh, S.P., 2008. Industrial relations. India: AITBS Publishers.
Ubeku, A.K., 1983. Industrial relations in developing countries: The cases of Nigeria. London: Macmillan.
Uvieghara, E.E., 2001. Labour law in Nigeria. Lagos: Malthouse, Press Limited.
Webb, S. and B. Webb, 1894. The history of trade unionism. New York: Augustus Kelly, 1965.
This study received no specific financial support.
The authors declare that they have no competing interests.