Ng, C., Ideris, Z., Narayanan,, S., Mannan, M., & Kurian, V. (2007). Engineering Properties of Oil Palm Shell (OPS) Hybrid Concrete for Lightweight Precast Floor Slab. International Conference on Sustainable Construction Materials and Technologies, Coventry University and The University of Wisconsin Milwaukee Centre for By-products Utilization.

Ng, C.H., Z. Ideris, S.P Narayanan,, M.A Mannan, and V.J Kurian. Engineering Properties of Oil Palm Shell (OPS) Hybrid Concrete for Lightweight Precast Floor Slab. International Conference on Sustainable Construction Materials and Technologies, Coventry University and The University of Wisconsin Milwaukee Centre for By-products Utilization, 2007.

Ng, C.H., et al. Engineering Properties of Oil Palm Shell (OPS) Hybrid Concrete for Lightweight Precast Floor Slab. International Conference on Sustainable Construction Materials and Technologies, Coventry University and The University of Wisconsin Milwaukee Centre for By-products Utilization, 2007.