Cordillera monograph
Cordillera Studies Center, University of the Philippines College Baguio
Susan D. Russell
Cordillera Studies Center, University of the Philippines [1989] Cordillera monograph 03
Available at 1 libraries
by Jules de Raedt
Cordillera Studies Center, University of the Philippines College Baguio [1989] Cordillera monograph 04
Available at 2 libraries
June Prill-Brett
Cordillera Studies Center, University of the Philippines, College Baguio [1987] Cordillera monograph 1