1. Palinchak, S., and Yurgen, W. J., in “Handbook of Adhesives,” I. Skeist, ed., pp. 209–220, New York, Van Nostrand Reinhold, 1962.
2. “The International Standards of Quality and Packing for Natural Rubber Grades,” The Rubber Manufacturers Assoc. of New York, 1969.
3. Bristow, G. M., and Rose, I. G., “Market Grades of Malaysian Natural Rubber,” NR background series No. 4, Hertford, England, Malaysian Rubber Producers’ Research Assoc.
4. “Revisions to Standard Malaysian Rubber Scheme 1979,” SMR Bulletin No. 9, Kuala Lumpur, Rubber Research Inst, of Malaysia.
5. Bristow, G. M., and Tomkinson, R. B., Viscosity of Solutions of SMR5L and SMR5CV, NR Technol. 6(part 2), 34–38 (1975).