Bundjali, B., Masykuri, M., Hartanti, F. W. and Arcana, I. M. (2018) “Poly(urethane) synthesized from 9-ethoxy-1,10-octadecanediol obtained by modification of palm oil oleic acid”, Journal of Mathematical and Fundamental Sciences, 50(1), pp. 13-27. doi: 10.5614/j.math.fund.sci.2018.50.1.2.