Pedrajas, J. A. B. (2025). How a Filipino sultan and Chinese emperor started PH-China friendship in the 14th century. Manila Bulletin.
Chicago-referens (17:e uppl.)Pedrajas, Joseph Almer B. "How a Filipino Sultan and Chinese Emperor Started PH-China Friendship in the 14th Century." Manila Bulletin 2025.
MLA-referens (9:e uppl.)Pedrajas, Joseph Almer B. "How a Filipino Sultan and Chinese Emperor Started PH-China Friendship in the 14th Century." Manila Bulletin, 2025.
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