Gelis, Jacob (1968). The Customs of the Land of Israel (Minhage Erets-Yiśraʼel) (in Hebrew). Jerusalem: Mossad Harav Kook. p. 300. OCLC873519965. (reprinted in 1994)
Ishtori Haparchi (1999). "Redemption of Second Tithe". In Avraham Yosef Havatzelet (ed.). Kaftor wa-Ferach (in Hebrew). Vol. 3 (chapter 41). Jerusalem. pp. 17–19. OCLC32307172.{{cite book}}: CS1 maint: location missing publisher (link)