By Employee Relations Services. no.66-16 (1966:Apr. 25). Item is in English.

By Employee Relations Services. no.66-17 (1966:May 2). Item is in English.

By Employee Relations Services. no.66-18 (1966:May 9). Item is in English.

By Employee Relations Services. no.66-19 (1966:May 16). Item is in English.

By Employee Relations Services. no.66-20 (1966:May 23). Item is in English.

By Employee Relations Services. no.66-21 (1966:June 6). Item is in English.

By Employee Relations Services. no.66-22 (1966:June 13). Item is in English.

By Employee Relations Services. no.66-23 (1966:June 20). Item is in English.

By Employee Relations Services. no.66-24 (1966:June 27). Item is in English.

By Employee Relations Services. no.66-25 (1966:July 5). Item is in English.