ผู้ใช้:PPichit/กระบะทราย/วินัย พงศ์ศรีเพียร

• https://www.car.chula.ac.th/find_author.php?author=%E0%B8%A7%E0%B8%B4%E0%B8%99%E0%B8%B1%E0%B8%A2%20%E0%B8%9E%E0%B8%87%E0%B8%A8%E0%B9%8C%E0%B8%A8%E0%B8%A3%E0%B8%B5%E0%B9%80%E0%B8%9E%E0%B8%B5%E0%B8%A2%E0%B8%A3
• https://www.prachachat.net/breaking-news/news-1082786
• https://www.gotoknow.org/posts/138735