Soisa, Tanad, Abhisit Salam, and Takayuki Manaka. 2021. “Stratigraphy and Petrochemistry of Volcanic Rocks at Suwan Prospect, Phitsanulok Province, central Thailand”. Bulletin of Earth Sciences of Thailand 12 (1):30-48. https://ph01.tci-thaijo.org/index.php/bestjournal/article/view/246788.