00357nam a2200097Ia 4500008004100000100001800041245008100059260009900140300001200239650000800251220216s9999    xx            000 0 und d  aKow Phang A H 0aControlled upward tapping of old rubber: A case study in a FELDA land scheme  bProceedings of the Rubber Research Institute of Malaysia, Rubber Growers Conference 1986c1986  a174-183  aCUT