Tay, L. T., Putra Jaya, R., Abdul Hassan, N., Yaacob, H., & Jayanti, D. S. (2015). A review of utilization of coconut shell and coconut fiber in road construction. Penerbit UTM Press.

Tay, Lay Ting, Ramadhansyah Putra Jaya, Norhidayah Abdul Hassan, Haryati Yaacob, and Dewi Sri Jayanti. A Review of Utilization of Coconut Shell and Coconut Fiber in Road Construction. Penerbit UTM Press, 2015.

Tay, Lay Ting, et al. A Review of Utilization of Coconut Shell and Coconut Fiber in Road Construction. Penerbit UTM Press, 2015.