Zechariah, M. (2013). New Frontiers on Legal Enforceability of Collective Agreements in Nigeria. Current Jos Law Journal, 6(1), 293–318. (http://irepos.unijos.edu.ng/jspui/handle/123456789/1748). https://irepos.unijos.edu.ng/jspui/bitstream/123456789/1748/1/new%20frontiers%20on%20legal%20enforceability.pdf