2016. The SUSPECT SYMPTOMS OF INBREEDING DEPRESSION AND THE HOMOZYGOSITY LEVEL OF FOURTH GENERATION OF SP450T AND FIFTH GENERATION OF DURA DELI OIL PALM SELFING POPULATION. Jurnal Penelitian Kelapa Sawit. 24, 2 (Aug. 2016), 55–66. DOI:https://doi.org/10.22302/iopri.jur.jpks.v24i2.8.