Năm 1989 có bao nhiêu ngày Thứ 2

2/1/1989 9/1/1989 16/1/1989 23/1/1989 30/1/1989 6/2/1989 13/2/1989 20/2/1989 27/2/1989 6/3/1989 13/3/1989 20/3/1989 27/3/1989 3/4/1989 10/4/1989 17/4/1989 24/4/1989 1/5/1989 8/5/1989 15/5/1989 22/5/1989 29/5/1989 5/6/1989 12/6/1989 19/6/1989 26/6/1989 3/7/1989 10/7/1989 17/7/1989 24/7/1989 31/7/1989 7/8/1989 14/8/1989 21/8/1989 28/8/1989 4/9/1989 11/9/1989 18/9/1989 25/9/1989 2/10/1989 9/10/1989 16/10/1989 23/10/1989 30/10/1989 6/11/1989 13/11/1989 20/11/1989 27/11/1989 4/12/1989 11/12/1989 18/12/1989 25/12/1989