LLANES, Ferdinand C..
 The Bourbon Background of Bustamante’s Embassy to Siam.
<strong>Philippine Social Sciences Review</strong>, [S.l.], sep. 2010.
ISSN 2672-3158.
Available at: &lt;<a href="https://www.journals.upd.edu.ph/index.php/pssr/article/view/1959" target="_new">https://www.journals.upd.edu.ph/index.php/pssr/article/view/1959</a>&gt;. Date accessed: 04 aug. 2025.