Slovarʹ i︠a︡kutskogo i︠a︡zyka - Pekarskiĭ, Ė. K. (Ėduard Karlovich), 1858-1934. (St. Petersburg : Izd. Imperatorskoĭ Akademīi nauk, 1907)
Issued in 13 parts, 1907-30. Mode of access: Internet.