x-x: MSL 14, 111 1.3 i 4'-5'.
mi-in: CUSAS 12, 1.2.1 o 17 (mim[space]).
mu-ša-um: Ebla Sign List 26 (muš[face]).
mu-uš: OB Nippur Ea 752 (muš[face]); CUSAS 12, 1.2.1 o 18 (muš[space]), 19 (muš[face]); PBS 05, 124 o 1 (muš[face]).
mu-uš-ku: OB Nippur Ea 753.