Preprint published in 1970 by M. D. Ataur Rahman, Md Saidur Rahman, Mohammad Rasheduzzaman, Md Jamal Uddin, Hyewhon Rhim, M. D. Hasanur Rahman, Mamun Or Rashid Anm, Md Rezanur Rahman, Hongik Hwang, Myung-Geol Pang, Md Ataur Rahman