National Institute for Occupational Safety and Health (2000). "Morpholine". International Chemical Safety Cards. 20 Eylül 2018 tarihinde kaynağından arşivlendi. Erişim tarihi: 5 Kasım 2005.
NIOSH Pocket Guide to Chemical Hazards. "#0437". National Institute for Occupational Safety and Health (NIOSH).
Hall, H. K. (1957). "Correlation of the Base Strengths of Amines1". J. Am. Chem. Soc. 79 (20). ss. 5441-5444. doi:10.1021/ja01577a030.
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National Institute for Occupational Safety and Health (2000). "Morpholine". International Chemical Safety Cards. 20 Eylül 2018 tarihinde kaynağından arşivlendi. Erişim tarihi: 5 Kasım 2005.