Hongkong-Postgraduate work 1963-1975 (ii) 1968-1969, Jan 1968-December 1969 Box 19 Unit ID: 182 Date: Jan 1968-December 1969
Hongkong-Postgraduate Work 1963-1975 (iii) 1970-1975, January 1970- March 1975 Box 19 Unit ID: 183 Date: January 1970- March 1975
Indonesia-Postgraduate Work 1967-1972 (i) 1967-1970), August 1967-December 1970 Box 19 Unit ID: 188 Date: August 1967-December 1970
Indonesia-Postgraduate Work 1967-1972 (ii) 1971-1972, January 1971-October 1972 Box 19 Unit ID: 189 Date: January 1971-October 1972