Rujukan Ramphastidae

  1. ↑ "Vocabulário Tupi-Português do Curso Elementar de Tupi Antigo" [Elementary Course for Tupi-Portuguese Vocabulary of the Old Tupi] (dalam bahasa Portugis). Universidade de São Paulo. Dicapai pada 1 June 2015 – melalui fflch.usp.br.
  2. ↑ Ferrara, Sue. "The Difference Between A Toucan & A Hornbill". animals.mom.me. Pets on Mom. Dicapai pada 8 July 2020.
  3. ↑ "Jacamars, puffbirds, toucans, barbets & honeyguides". IOC World Bird List (ed. 10.2). Dicapai pada 2017-03-10 – melalui worldbirdnames.org.