Rubber engineering / Indian Rubber Institut
Indian Rubber Institut
Tata McGraw-Hill, 1998
 Buku Teks SO
Hood, Hugh
White figure, white ground
General Publishing, 1983
 Koleksi Publik
Webster, Jean
Daddy - long - legs: surat-surat kepada aya kaki panjang
Buku Katta, 2021
 Buku Teks SO
Phillips, Charles F.
Competition in the synthetic rubber industry
University of North Carolina , 1963
 Buku Teks
Knorr, K.E.
World rubber and its regulation
Stanford University Press, 1945
 Buku Teks SO