Mutlu, H и др. Castor oil as a renewable resource for the chemical industry // European Journal of Lipid Science and Technology 112 (1). януари 2010. DOI:10.1002/ejlt.200900138. с. 10 – 30.
Wilson, R и др. Overview of the preparation, use and biological studies on polyglycerol polyricinoleate (PGPR) // Food and Chemical Toxicology 36 (9 – 10). 1998. DOI:10.1016/S0278-6915(98)00057-X. с. 711 – 8.
Mutlu, Hatice и др. Castor oil as a renewable resource for the chemical industry // European Journal of Lipid Science and Technology 112. 25 януари 2010. DOI:10.1002/ejlt.200900138. с. 10 – 30.
Ogunniyi, D.S. Castor oil: A vital industrial raw material // Bioresource Technology 97 (9). юни 2006. DOI:10.1016/j.biortech.2005.03.028. с. 1086 – 91.