พันธุ์วัฒนา พิชศาล. 2018. “Preferences for Birdcages Among Red-Whiskered bulbuls’ Owners in Bangkok and Its Vicinity”. Journal of Liberal Arts Prince of Songkla University 10 (2):112-36. https://so03.tci-thaijo.org/index.php/journal-la/article/view/164061.