by Anwar, Moh. Arsjad, dkk $11.00
by Arief, Sritua $6.00
by Srivastava. UK., GV. Shenoy, SC. Sharma $11.00
by Arief, Sritua $7.00
by Nalbandov, A.V $7.00
by Adler, Hans A $6.00