Amanmašša is only referenced in two letters of the Byblos sub-corpus of Rib-Hadda, EA 113 and 114; EA is for 'el Amarna'.
Amanmašša appears in reference to only two letters from the Byblos sub-collection of Rib-Hadda, EA 113 and 114; EA is an abbreviation for el Amarna.