Charting the Abra gold trade network of northwestern Luzon using ethnohistorical archaeology and WorldView-3 satellite imagery - Canilao, Michael Armand P. (2018)
Includes bibliographical references.
Keywords: Gold mines and mining -- Philippines -- Abra -- History; Gold -- Philippines -- Abra -- History; Trade routes -- Philippines -- Luzon, Northwestern; Abra -- Remote-sensing images; Ilocos Sur -- Remote-sensing images