Hazell's annual. Hazell, Watson and Viney. 1910. p. 584. Nuoroda tikrinta 12 December 2011.
nih.gov
pubmed.ncbi.nlm.nih.gov
Dean BS, Krenzelok EP (1986 m. balandžio mėn.). „Syrup of ipecac dosing ... How much is a tablespoonful?“. Vet Hum Toxicol. 28 (2): 155–6. PMID2871653.