Aref, Mohammad Reza (c. 2023) [Approved 27 December 1383]. Divisional reforms in South Khorasan and Razavi Khorasan provinces. lamtakam.com (Report) (in Persian). Ministry of the Interior, Political-Defense Commission of the Government Board. Proposal 1.4.42.126699; Notification 26896/T32435K. Archived from the original on 28 December 2023. Retrieved 28 December 2023 – via Lam ta Kam.
OpenStreetMap contributors (11 November 2024). "Sarayan County" (Map). OpenStreetMap (in Persian). Retrieved 11 November 2024.
qavanin.ir
Adel, Gholam Ali Haddad (c. 2020) [Approved 3 September 1383]. The law of division of Khorasan province into three provinces. qavanin.ir (Report) (in Persian). Islamic Council. Archived from the original on 30 October 2020. Retrieved 27 December 2023 – via Laws and Regulations Portal of the Islamic Republic of Iran.
Aref, Mohammad Reza (c. 2023) [Approved 27 December 1383]. Divisional reforms in South Khorasan and Razavi Khorasan provinces. lamtakam.com (Report) (in Persian). Ministry of the Interior, Political-Defense Commission of the Government Board. Proposal 1.4.42.126699; Notification 26896/T32435K. Archived from the original on 28 December 2023. Retrieved 28 December 2023 – via Lam ta Kam.
Adel, Gholam Ali Haddad (c. 2020) [Approved 3 September 1383]. The law of division of Khorasan province into three provinces. qavanin.ir (Report) (in Persian). Islamic Council. Archived from the original on 30 October 2020. Retrieved 27 December 2023 – via Laws and Regulations Portal of the Islamic Republic of Iran.