1
by K. Che Man, W, 1946-
Published 1990
2
by Esmula, Wadja K.
Published 1990
3
Published 1974
4
5
by Vitug, Marites Dan?guilan
Published 2000
6
by Nur Misuari, Prof.
Published 1996
7
by Nur Misuari, Prof.
Published 1996