1. R. Howeler, N. B. Lutaladio and G. Thomas, Save and Grow: Cassava, a Guide to Sustainable Production Intensification (Food and Agriculture Organization of the United Nations, Rome, 2013), 142 pp.
2. Establishment of a cassava (Manihot esculenta Crantz) core collection based on agro-morphological descriptors
3. ILETRI, “Hasil utama penelitian tanaman aneka kacang dan umbi” in Laporan Tahunan 2019 (Indonesian Legumes and Tuber Crops Research Institute, Malang, 2020), 28 pp.
4. W. M. G. Fukuda, C. L. Guevara, R. Kawuki and M. E. Ferguson, Selected Morphological and Agronomic Descriptors for the Characterization of Cassava (International Institute of Tropical Agriculture, Ibadan, Nigeria), 19 pp.
5. Suwandi, Prosedur Operasional Standar Penilaian Varietas dalam Rangka Pelepasan Varietas Tanaman Pangan (Direktorat Jenderal Tanaman Pangan, Kementerian Pertanian, Republik Indonesia, Jakarta, 2019), 136 pp.