Purwati, R. , Anggraeni, T. , Heliyanto, B. , Machfud, M. , Hartono, J. (2018), 'Hybridization and Evaluation of Jatropha (Jatropha curcas L.) to Improve High Yield Varieties in Indonesia', World Academy of Science, Engineering and Technology, Open Science Index 142, International Journal of Agricultural and Biosystems Engineering, 12(10), 412 - 417.