↑ Patanñe, E.P. (31 Mac 1991). "New Philippine date challenges historians". Manila Standard (dalam bahasa Inggeris). Kagitingan Publications, Inc. m/s. 4. Dicapai pada 25 April 2021. A copper plate containing an Old Malay inscription [...] deciphered by the Dutch Ethnographer [sic] Antoon Postma, carries a clear date of Saka 822, a Sanskritized reckoning equivalent to A.D. 900.
↑ Patanñe, E.P. (31 Mac 1991). "New Philippine date challenges historians". Manila Standard. Kagitingan Publications, Inc. m/s. 4. Dicapai pada 25 April 2021. A copper plate containing an Old Malay inscription [...] deciphered by the Dutch Ethnographer [sic] Antoon Postma, carries a clear date of Saka 822, a Sanskritized reckoning equivalent to A.D. 900.
↑ Santos, Hector (1996). "The Date of the Laguna Copperplate Inscription". Philippine Studies. 44 (4): 515. JSTOR42634198. It involved the reconstruction of an ancient calendar used in the Philippines over a millennium ago using clues provided by Indian and Indonesian calendars from which it was derived. Let me present the answer right at the start. Then I will show how this equivalent date was derived. The Julian equivalent is: Monday, 21 April 900 A.D
↑ "ulun". Kamus Dewan (ed. ke-4). Dewan Bahasa dan Pustaka Malaysia. 2017.
