| Giữ âm lượng: |
v.8:no.1 (Sep. 1929) - v.11:no.4 (May 1933)
v.13:no.1 (Oct. 1934) - v.13:no.4 (May 1935)
v.20:no.1 (Oct. 1941) - v.20:no.4 (May 1942)
v.22:no.1 (Oct. 1943) - v.22:no.4 (May 1944)
v.24:no.1 (Oct. 1945) - v.38:no.4 (May 1960)
v.40:no.1 (Oct. 1961) - v.44:no.4 (Jun. 1966)
v.46:no.1 (Sep. 1967) - v.85:no.4 (Jun. 2006)
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