1. Abraham ST (2000) Genetic parameters and divergence in certain wild genotypes of Hevea brasiliensis (Willd. ex Adr.de Juss.) Muell. Arg. Ph.D. Thesis submitted to Mahatma Gandhi University, Kottayam
2. Abraham PA, Wycherley PR, Pakianathan SW (1968) Stimulation of latex flow in Hevea brasiliensis by 4-amino-3, 5, 6-trichloropicolinic acid and 2-chloroethane phosphoric acid. J Rubber Res Inst Malaya 20:291–305
3. Abraham ST, Reghu CP, Madhavan J, George PJ, Potty SN, Panikkar AON, Saraswathy P (1992) Evaluation of Hevea germplasm I: variability in early growth phase. Indian J Nat Rubber Res 5(1 and 2):195–198
4. Abraham ST, Reghu CP, Panikkar AON, George PJ, Potty SN (1994) Juvenile characterization of wild Hevea germplasm. Indian J Plant Genet Resour 7(2):157–164
5. Abraham ST, Reghu CP, George PJ, Nair RB (1997) Studies on genetic divergence in Hevea brasiliensis. Paper presented at the symposium on tropical crop research and development, Trissur, 9–12 Sept