April 1991 Vol. 12, No. 1 ~ May 1991 Vol. 12, No. 13

April 1991	Vol. 12, No. 1	8	1,375k
April 1991	Vol. 12, No. 2	9	1,641k
April 1991	Vol. 12, No. 3	12	1,892k
April 1991	Vol. 12, No. 4	8	1,293k
April 1991	Vol. 12, No. 5	16	2,469k
April 1991	Vol. 12, No. 6	12	1,872k
April 1991	Vol. 12, No. 7	12	1,909k
May 1991	Vol. 12, No. 8	8	1,495k
May 1991	Vol. 12, No. 9	8	1,304k
May 1991	Vol. 12, No. 10	8	1,497k
May 1991	Vol. 12, No. 11	12	1,952k
May 1991	Vol. 12, No. 12	12	2,133k
May 1991	Vol. 12, No. 13	16	2,818k