(3JfXje fbd GdeYQaI GdJbfjI (B"know-how" (3Hjf eTQhY GdJbfjf heTQhY GdbGfhf GdeUQj (B/s - (3jMji, SYjO Ydjs ((3GdEScfOQjI, eUQ (B:s (3GdecJH GdYQHj GdMOjK,s, 1986)
Keywords: (3fbd GdJcfhdhLjGs -- (3bhGfjf hJTQjYGJs -- (3eUQs; (3fbd GdJcfhdhLjGs -- (3bhGfjf hJTQjYGJs