1.Promulgated on July 14, 1954
2.Amended on December 14, 1959
3.Amended on January 08, 1968
4.Amended on June 22, 1968
5.Amended on July 27, 1979
6.Amended on April 03, 1980
7.Amended on May 09, 1980
8.Amended on May 11, 1983
9.Amended on May 14, 1986
10.Amended on May 26, 1989
11.Amendment and promulgated by President on November 19, 1997.