- batman.ktb.gov.tr TR-56621/hasankeyf-kalesi.html
- nedemek.page kavramlar/petro ve pavel kalesi
- taplink.cc petersburg_rehberi
- yeniakit.com.tr biyografi/i-petro
- wikizero.com tr/I._Petro
- wikiwand.com tr/Petro_ve_Pavel_Kalesi
- researchgate.net Pavel Menshikov
- tr.fashionrebelsbook.com 17338672-temple-of-the-…