1.
図書 |
by Jose Villa Panganiban
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2.
図書 |
Consuelo Torres Panganiban, José Villa Panganiban
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3.
図書 |
Institute of National Language (Philippines)
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4.
図書 |
compiled by Carl R. Galvez Rubino ; with the assisstance of Maria Gracia Tan Llenado, chief consultant
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