Septriana, A.; Azhar; Astuti, W. Daur Ulang Refraktori Bekas Kiln Dan Fly Ash Batubara Dengan Variasi Tekanan Greenbody [Recycling of Used Refractory of Kiln and Coal Fly Ash by Various of Greenbody Presure]. Metalurgi 2017, 32, 97-104.