 | | FOOD CHAIN No. 01 - November 1990 (ITDG, 1990, 16 p.) |
| | FOOD CHAIN No. 02 - March 1991 (ITDG, 1991, 16 p.) |
| | FOOD CHAIN No. 03 - July 1991 (ITDG, 1991, 16 p.) |
| | FOOD CHAIN No. 04 - November 1991 (ITDG, 1991, 16 p.) |
| | FOOD CHAIN No. 06 - July 1992 (ITDG, 1992, 16 p.) |
| | FOOD CHAIN No. 07 - November 1992 (ITDG, 1992, 20 p.) |
| | FOOD CHAIN No. 08 - March 1993 (ITDG, 1993, 16 p.) |
| | FOOD CHAIN No. 09 - July 1993 (ITDG, 1993, 16 p.) |
| | FOOD CHAIN No. 10 - November 1993 (ITDG, 1993, 16 p.) |
| | FOOD CHAIN No. 11 - March 1994 (ITDG, 1994, 16 p.) |
| | FOOD CHAIN No. 12 - July 1994 (ITDG, 1994, 16 p.) |
| | FOOD CHAIN No. 13 - November 1994 (ITDG, 1994, 16 p.) |
| | FOOD CHAIN No. 14 - March 1995 (ITDG, 1995, 16 p.) |
| | FOOD CHAIN No. 15 - July 1995 (ITDG, 1995, 16 p.) |
| | FOOD CHAIN No. 16 - November 1995 (ITDG, 1995, 16 p.) |
| | FOOD CHAIN No. 17 - March 1996 (ITDG, 1996, 16 p.) |
| | FOOD CHAIN No. 18 - July 1996 (ITDG, 1996, 16 p.) |
| | FOOD CHAIN No. 19 - November 1996 (ITDG, 1996, 16 p.) |
| | FOOD CHAIN No. 20 - March 1997 (ITDG, 1997, 20 p.) |
| | FOOD CHAIN No. 21 - July 1997 (ITDG, 1997, 20 p.) |
| | FOOD CHAIN No. 22 - January 1998 (ITDG, 1998, 24 p.) |
