Gua Longyou: Keajaiban Arsitektur Bawah Tanah dengan Pola Misterius

The Longyou Caves: One of China's Greatest Mysteries - Enter the Caves, https://enterthecaves.com/longyou-caves/

The Mystery of the Longyou Caves (heritagedaily.com), https://www.heritagedaily.com/2020/08/the-mystery-of-the-longyou-caves/134874

Ten Enduring Mysteries of China’s Longyou Caves | Ancient Origins (ancient-origins.net), https://www.ancient-origins.net/ancient-places-asia/longyou-caves-001248

Longyou Caves: Ancient Chinese Caves You’ve Never Heard Of (mymodernmet.com), https://mymodernmet.com/longyou-caves/