1. Modular Functions of One Variable IV,1975
2. The modular curve X0(39) and rational isogeny;Kenku,1979
3. The modular curves X0(65) and X0(91) and rational isogeny;Kenku,1980
4. The modular curve X0(169) and rational isogeny;Kenku;J. London Math. Soc.,1980
5. On the modular curves X0(125), X1(25) and X1(49);Kenku;J. London Math. Soc.,1981