- Circular letter (Number 12, April 2, 1945)1
- Circular letter (Number 12, December 1, 1947)1
- Circular letter (Number 12, February 1, 1945)1
- Circular letter (Number 12, February 19, 1946)1
- Circular letter (Number 12, June 20, 1946)1
- Circular letter (Number 12, May 19, 1945)1
- Circular letter (Number 12, November 1, 1946)1
- Circular letter (Number 13, April 4, 1945)1
- Circular letter (Number 13, December 1, 1946)1
- Circular letter (Number 13, February 21, 1946)1
- Circular letter (Number 13, February 8, 1945)1
- Circular letter (Number 13, June 24, 1946)1
- Circular letter (Number 13, May 20, 1945)1
- Circular letter (Number 14, April 13, 1945)1
- Circular letter (Number 14, February 13, 1945)1
- Circular letter (Number 14, February 23, 1946)1
- Circular letter (Number 14, January 1, 1947)1
- Circular letter (Number 14, June 25, 1946)1
- Circular letter (Number 14, May 24, 1945)1
- Circular letter (Number 15, February 1, 1947)1