The book you might be referring to is "Budo: The Philosophy of Dynamic Fighting" or " Kyokushin Budo Karate" but most notably "Budo Karate of Masutatsu Oyama" also known as "The Book of Budo Karate"
If you tell me of the paper you’re looking for, I can: the budo karate of mas oyama pdf verified
Masutatsu Oyama, also known as Mas Oyama, was a renowned Japanese-American martial artist, best known for developing the Kyokushin style of karate. His life's work and legacy continue to inspire and influence martial artists worldwide. "The Budo Karate of Masutatsu Oyama" is a compilation of his philosophies, techniques, and experiences, which have been verified and made available in PDF format for enthusiasts and practitioners. The book you might be referring to is