Oil Palm Bulletin No. 38 (May 1999) p20-28
The effect of design parameters on force and energy requirements for cutting oil palm frond
ABDUL RAZAK Jelani , DESA Ahmad , AHMAD Hitam

Oil Palm Bulletin No. 36 (May 1998) p13-20
The effects of physical characteristics of aluminium pole on the harvesting productivity of tall palms
ABDUL RAZAK Jelani , ABDUL RAHIM Shuib , AHMAD Hitam

Oil Palm Bulletin No. 21 (November 1990) p35 - 39
Design and evaluation of a Crane Fitted to a Mini-Tractor for Mechanical Loading of Palm Fresh Fruit Bunches
Abd Rahim Shuib, Abdul Halim Hassan and Ma Ah Ngan