Cèṭa'an:Infobox language/ref

↑ [1] di Ethnologue (ed. ke-18, 2015)

↑ Referensi di Ethnologue (ed. ke-17, 2013)

↑
[2] at Ethnologue (16th ed., 2009)

↑ [3] at Ethnologue (15th ed., 2005)

↑ [4] at Ethnologue (14th ed., 2000).

↑ at Ethnologue (13th ed., 1996).

↑ at Ethnologue (12th ed., 1992).

↑ at Ethnologue (11th ed., 1988).

↑ at Ethnologue (10th ed., 1984). Note: Data may come from the 9th edition (1978).

↑ Insert non-formatted text hereat Ethnologue (9th ed., 1978).

↑ at Ethnologue (8th ed., 1974). Note: Data may come from an earlier edition.

↑ Mikael Parkvall, "Världens 100 största språk 2007" (100 Bahasa Terbesar pada2007), di Nationalencyklopedin

↑ "Världens 100 största språk 2010" (100 Bahasa Terbesar pada 2010), di Nationalencyklopedin

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