- "The Spanish period." Britannica . 14 August 2023. <https://www.britannica.com/place/Philippines/The-Spanish-period>.
- Joshua Kueh. "Negotiating Empire, Part I: From Magellan to the Founding of Manila, 16th-18th Centuries." Library of Congress Blogs. 1 October 2021. 14 August 2023. <https://blogs.loc.gov/international-collections/2021/10/negotiating-empire-part-i-from-magellan-to-the-founding-of-manila-16th-18th-centuries/>.
- Joshua Kueh. "Negotiating Empire, Part II: Translation in the Philippines under Spanish Rule, 16th-19th centuries." Library of Congress Blogs. 1 November 2021. 14 August 2023. <https://blogs.loc.gov/international-collections/2021/11/negotiating-empire-part-ii-translation-in-the-philippines-under-spanish-rule-16th-19th-centuries/>.
- "José Rizal Biography." José Rizal. 10 August 2023. <https://www.joserizal.com/>.
- "Mene mene tekel upharsin: what does it mean?." Bibleinfo . 7 August 2023. <https://www.bibleinfo.com/en/questions/mene-mene-tekel-upharsin-meaning>.