Philppines. Upland Development Program. (1989). Implementation manual for participatory ISF projects. UDP.
Dyfyniad Arddull ChicagoPhilppines. Upland Development Program. Implementation Manual for Participatory ISF Projects. Quezon City: UDP, 1989.
Dyfyniad MLAPhilppines. Upland Development Program. Implementation Manual for Participatory ISF Projects. UDP, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.