column
1986, 1(2): 142-148.
1986, 1(2): 149-157.
1986, 1(2): 158-164.
1986, 1(2): 165-174.
1986, 1(2): 175-184.
1986, 1(2): 185-195.
1986, 1(2): 196-203.