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            1Language endangermentCyhoeddwyd 2019Available for University of the Philippines Baguio via Cambridge Books Online. Click here to access
 Electronic Resource
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            2Understanding the factors of language endangerment among the Agtas in Alabat and Lopez, QuezonCyhoeddwyd 2018Cael y testun llawn
 Traethawd Ymchwil
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            4On the verge the state of the Isinay language as "endangered" in Bambang, Nueva VizcayaCyhoeddwyd 2015Cael y testun llawn
 Traethawd Ymchwil
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            5Why is the Isinay language endangered? a case study in the municipality of Dupax del Sur, Nueva VizcayaCyhoeddwyd 2014Cael y testun llawn
 Traethawd Ymchwil
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