1. The influence of formulation on yield response and bark damage following the application of yield stimulants above the tapping cut;Abraham;J. Rubber Res. Inst. Malaya,1964
2. Effects of plant growth regulators and other compounds on the flow of latex in;Abraham;Hevea brasiliensis. Ann. Appl. Biol.,1968
3. Stimulation of latex flow in Hevea brasiliensis by 4-amino-3, 5, 6-trichloropicolinic acid and 2-chloroethanephosphonic acid;Abraham;J. Rubber Res. Inst. Malaya,1968
4. Novel stimulants and procedures in the exploitation of Hevea. I. Introductory review;Abraham;J. Rubber Res. Inst. Malaya,1971
5. Novel stimulants and procedures in the exploitation of Hevea. II. Pilot trial using 2-chloroethyl-phosphonic acid (ethephon) and acetylene with various tapping systems;Abraham;J. Rubber Res. Inst. Malaya,1971