x: CT 12, pl. 23, BM 041499 o i 24'.
a-zu: OB Nippur Ea 612 (azu[doctor]); CUSAS 12, 1.1.2 o i 22 (azu[doctor]); PBS 05, 111 & 127 o i 7 (azu[doctor]); Ea 07 22 (azu[doctor]).
u₂-zu: K 04263+ o iii 21' (uzu[diviner]).