The NCB (National Council for Cement & Building Materials) in India publishes a number of Technology Digests, Monographs & Research Bulletins. At least 10 of these relate to vertical shaft kiln technology. Unfortunately I can't tell you which is the best. I would pick either Technology Digest 25, "CRI vertical shaft kiln mini cement plant technology", or Technology Digest 32, "CRI modern vertical shaft kiln cement plants".