Aristarchian symbols jẹ́ asterisk àti obelus. Wọ́n sọ ọ́ lórúkọ lẹ́yin Aristarchus of Samothrace. Paul D. Wegner (2006). A student's guide to textual criticism of the Bible. InterVarsity Press. p. 194. ISBN 978-0-19-814747-3. http://books.google.com.ph/books?id=SIMsY6b2n2gC&lpg=PA193&dq=obelos&pg=PA192#v=onepage&q&f=false.  George Maximilian Anthony Grube (1965). The Greek and Roman critics. Hackett Publishing. p. 128. ISBN 978-0-87220-310-5. http://books.google.com.ph/books?id=jerucRW8UmMC&lpg=PA128&dq=obelos&pg=PA128#v=onepage&q&f=false.