1. Agus, F., Gintings, A. N., Kurnia, U., Abdurachman, A.,Poel, P (1998). Soil erosion research in Indonesia: experience and future direction. Soil erosion at multiple scales: principles and methods for assessing causes and impacts., 255-267.
2. Atagana, H. I., Haynes, R. J., & Wallis, F. M. (2003). Optimization of soil physical and chemical conditions for the bioremediation of creosote-contaminated soil. Biodegradation,14(4), 297-307.
3. Cargil, C., Mahalaya.S., Soplanit, A., Syahputra, A.T., Kossay, L.,Mujid, N., Isman, Lynos, G., Prabawardani,S., Ginting,E., Glatz,P., Putra, M., Dwita, D.A., Rumbarar, M.K. Rengil, J.B., dan Ellen, A.K (2014) Summary of Teaching Materials for Farmer Training. Plant Cultivation Techniques and Animal Production. International Potato Center (CIP) ISSN 1447-090X (online) Canberra, Australia.
4. Copeland LO, McDonald MB (2001) Principles of Seed Science and Technology. 4th ed. New York (US): Kluwer Academic Publisher.
5. Dalapati A (2012) Detection of the vigor of upland rice (Oryza sativa L.) seed storage using the fast ageing method [thesis]. Bogor (ID): Bogor Agricultural University.