Central Bureau of Statistics (2009), "Land – en tuinbouwcijfers, 2009"(PDF), Land- en Tuinbouwcijfers (بالهولندية), Government of the Netherlands, Department of Publication and Information, p. 14, ISSN:1386-9566, Archived from the original(PDF) on 2023-12-16, Retrieved 2018-01-06
Agency of Statistics of the Republic of Kazakhstan (ASRK). 2005. Main Demographic Indicators. Available at Stat.gov.kzنسخة محفوظة 2023-08-01 على موقع واي باك مشين.
Agency of Statistics of the Republic of Kazakhstan (ASRK). 2005. Main Demographic Indicators. Available at Stat.gov.kzنسخة محفوظة 2023-08-01 على موقع واي باك مشين.
Central Bureau of Statistics (2009), "Land – en tuinbouwcijfers, 2009"(PDF), Land- en Tuinbouwcijfers (بالهولندية), Government of the Netherlands, Department of Publication and Information, p. 14, ISSN:1386-9566, Archived from the original(PDF) on 2023-12-16, Retrieved 2018-01-06
Central Bureau of Statistics (2009), "Land – en tuinbouwcijfers, 2009"(PDF), Land- en Tuinbouwcijfers (بالهولندية), Government of the Netherlands, Department of Publication and Information, p. 14, ISSN:1386-9566, Archived from the original(PDF) on 2023-12-16, Retrieved 2018-01-06