Sun’iy tillar – maxsus yaratilgan xalqaro tillardir: masalan, polyak olimi L.Zamengof tomonidan yaratilgan esperanto tili.
1Richter B. First steps in theoretical and applied linguistics. -Budapest, 2006.-B.17
2Маҳмудов Н. Til. – Т., 1998.-Б.5
3 Маҳмудов Н. Маърифат манзиллари. –Т., 1999.
4Маҳмудов Н. Tил. –Т., 1998. - Б.7.
5Richter B. First steps in theoretical and applied linguistics. -Budapest, 2006.
6Abduazizov A. Tilshunoslik nazariyasiga kirish. -T.: “Sharq” NMAK, 2010.-B.116.
7Richter B. First steps in theoretical and applied linguistics.-Budapest, 2006.-B.101
8Richter B. First steps in theoretical and applied linguistics.-Budapest, 2006.- P.17.
9Ҳожиев А. Тилшунослик терминларининг изоҳли луғати.-Т., 2002.-Б.15.
10Ҳожиев А. Тилшунослик терминларининг изоҳли луғати.-Т., 2002.-Б.37.
11Richter B. First steps in theoretical and applied linguistics.-Budapest, 2006.- P.17.
12 Samatboyeva M. O‘zbek yoshlari nutqidagi sotsiolektlar (argo, jargon, sleng)/ Filologiya masalalari – yosh tadqiqotchilar nigohida. –T., 2018. –B.108 –115.
13Abduazizov A. Tilshunoslik nazariyasiga kirish. -T.: “Sharq” NMAK, 2010.-B.116.