Dhanurved

A few links:

DHANURVEDAM - A documentary on Ancient Indian Warfare || Project SHIVOHAM - YouTube
Project Shivoham-- YouTube channel
Dhanurveda, The Book On The Indian Martial Science (ganeshaspeaks.com) Explains the positions of the archer 
2015.382701.Vasistas-Dhanurveda.pdf (archive.org) 114 pages pdf format, which English transliteration and explanation