Philippine News Agency. (2019). Death toll in Davao del Sur quake rises to 11. Manila Bulletin.
Chicagoスタイル(17版)引用形式Philippine News Agency. "Death Toll in Davao Del Sur Quake Rises to 11." Manila Bulletin 2019.
MLA(9版)引用形式Philippine News Agency. "Death Toll in Davao Del Sur Quake Rises to 11." Manila Bulletin, 2019.
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