Research bulletin of the National Institute for Educational Research.

no.3-05 yr.1962-64; v.1-6(1959-1965); no.1-9 1959-1967; no.6-10 yr.1965-71; no.11-12 yr.1972-73; no.14-15 yr.1976-77; no.10-18 1971-1979; v.10-18 1971-79; no.19 1980 Dec; no.20 1981 Jan; v.19-21 1980-82; no.21 1982 Mar; no.22 1983 Sep; no.23 1984; no.24 1985 Dec; no.25 1986-1987; v.10(1971); v.11(1972); v.12(1973); v.13(1975); v.14(1976); v.15(1977); v.21(1982); v.22(1983); v.24(1985); v.25(1986-1987); v.22-26 1983-1988/89; no.26 1988-1989; no.27 1994; no.28 1997; v.27(1994); v.28(1997); v.7(1966); v.8(1967); v.9(1967); v.18(1979); v.17(1978); v.16(1978); v.19(1980); v.20(1981)