1.
“Six Secret Strategic Teachings”, one of the Seven Military Classics of ancient China wǔjīngqīshū武經七書wǔjīngqīshū武经七书, attributed to Jiang Ziya jiāngzǐyá姜子牙
1.
"Six Secret Strategic Teachings" liùtāo六韜liùtāo六韬 and "Three Strategies of Huang Shigong" sānlüè三略, two of the Seven Military Classics of ancient China wǔjīngqīshū武經七書wǔjīngqīshū武经七书, attributed to Jiang Ziya jiāngzǐyá姜子牙