ື່ອ "
Outlines specific shooting distances and bow weights for different age groups (e.g., elementary school at 35m, middle school at 60m) to ensure proper strength development.
: Services like Project Gutenberg, Open Library, or your country's national digital library might have e-books available for free. While it's less likely to find a specific title like Kim Hyung-tak's without a ISBN or specific entry, it's worth a try.
There is a reason archers are constantly searching for a digital version of his work. His printed books (often titled Kim Hyung Tak Archery or similar variations) are rare, expensive, and sometimes difficult to find in English.

