พันธุ์วัฒนา พิชศาล. “Preferences for Birdcages Among Red-Whiskered bulbuls’ Owners in Bangkok and Its Vicinity”. Journal of Liberal Arts Prince of Songkla University 10, no. 2 (December 30, 2018): 112–136. Accessed May 3, 2024. https://so03.tci-thaijo.org/index.php/journal-la/article/view/164061.