Gerald, I. (2018). REFRACTORIES. Afribary. Retrieved from https://afribary.com/works/refractories-2411
Gerald, IKenna "REFRACTORIES" Afribary. Afribary, 29 Jan. 2018, https://afribary.com/works/refractories-2411. Accessed 03 Oct. 2023.
Gerald, IKenna . "REFRACTORIES". Afribary, Afribary, 29 Jan. 2018. Web. 03 Oct. 2023. < https://afribary.com/works/refractories-2411 >.
Gerald, IKenna . "REFRACTORIES" Afribary (2018). Accessed October 03, 2023. https://afribary.com/works/refractories-2411