By Employee Relations Services. no.66-6 (1966:Feb. 7). Item is in English.

By Employee Relations Services. no.66-7 (1966:Feb. 14). Item is in English.

By Employee Relations Services. no.66-8 (1966:Feb. 21). Item is in English.

By Employee Relations Services. no.66-9 (1966:Feb. 28). Item is in English.

By Employee Relations Services. no.66-10 (1966:Mar. 7). Item is in English.

By Employee Relations Services. no.66-11 (1966:Mar. 14). Item is in English.

By Employee Relations Services. no.66-12 (1966:Mar. 21). Item is in English.

By Employee Relations Services. no.66-13 (1966:Mar. 28). Item is in English.

By Employee Relations Services. no.66-14 (1966:Apr. 4). Item is in English.

By Employee Relations Services. no.66-15 (1966:Apr. 11). Item is in English.