13. Рустамов Д. Лексемалар миллий-маданий хосланган семасининг лингвомаданий аспекти. Филол. фан. номз. ...дисс. – F.: 2018. – бет 4. (Rustamov D. Linguistic aspect of the national-cultural specific scheme of lexemes. Philol. science. name ... diss. - F.: 2018. - page 4)

14. Internet ma’lumotlari (Internet information):

1. https://mineconomy.uz/uz/info/4305

2. https://www.bechtel.com/blog/sustainability

3. https://en.wikipedia.org/wiki/2015_United_Nations

4. https://uz.wikipedia.org/wiki/Yashil_texnologiyalar

5. https://en.wikipedia.org/wiki/Green_belt

6. https://www.historytoday.com/green-belt

7. https://www.greenbeltmuseum.org/greenbelt-history

8. https://xs.uz/uz/post/prezident-shavkat-mirziyoev-yashil-makon

9. https://www.greenfieldin.org/residents/history-of-greenfield

10. https://en.wikipedia.org/wiki/Agenda_21

11. https://kun.uz/uz/87163666

12. https://test.dushanba.uz/

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6. Ҳожиев А., Mуҳаммаджонова Г., Бегматов Э., Ғойибов С., Муллаев Т ва Миртожиев М. Ўзбек тили лексикологияси. – Т.: Фан, 1981. (Hojiev A., Muhammadjonova G., Begmatov E., Goyibov S., Mullaev T and Mirtojiev M. Lexicology of the Uzbek language. - T.: Science, 1981)

7. Искандарова Ш. Лексикани мазмуний майдон асосида ўрганиш муаммолари. – Т.: Фан, 1998. (Iskanderova Sh. Problems of learning vocabulary based on content field. - T.: Science, 1998)

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10. Шоабдураҳмонов Ш., Асқарова М., Ҳожиев А., Расулов И ва Дониёров Х. Ҳозирги ўзбек адабий тили I қисм. – T.: Ўқитувчи, 1980. (Shoabdurahmonov Sh., Askarova M., Hojiev A., Rasulov I and Doniyorov Kh. Modern Uzbek literary language, part I. - T.: Teacher, 1980)

11. Hojiyev A., Nurmonov A., Zaynobiddinov S., Kokren K., Saidxonov M., Sobirov A va Quronov D. Hozirgi о‘zbek tili faol so‘zlarining izohli lug‘ati. – T.: Sharq, 2001. – бет 291. (Hojiyev A., Nurmonov A., Zaynobiddinov S., Kochren K., Saidkhanov M., Sobirov A and Kuronov D. An explanatory dictionary of active words of the modern Uzbek language. - T.: Sharq, 2001. - page 291)

12. Jamolxonov H. Hozirgi o‘zbek adabiy tili. – T.: Talqin, 2005. (Jamolkhanov H. Modern Uzbek literary language. - T.: Talqin, 2005)