ชง Acknowledgements Audio Waraphorn Sinthawarat Image source https://commons.wikimedia.org/wiki/File:%E3%82%A8%E3%83%81%E3%82%AA%E3%83%94%E3%82%A2%E3%83%B3%E3%82%B3%E3%83%BC%E3%83%92%E3%83%BC%E3%83%8F%E3%82%A6%E3%82%B9.jpg