Sujadi, S., N. Supena, and E. Suprianto. “CHARACTERISTICS OF FLOWER AND FRUIT DEVELOPMENT OF 35 ANGOLA ACCESSIONS OF INDONESIAN OIL PALM RESEARCH INSTITUTE’S COLLECTION AT ADOLINA ESTATE OF PT PERKEBUNAN NUSANTARA IV”. Jurnal Penelitian Kelapa Sawit, Vol. 27, no. 2, Aug. 2019, pp. 97-114, doi:10.22302/iopri.jur.jpks.v27i2.76.