Toshikazu Nakase ·1966-01-01 ·『Keiei Shigaku (Japan Business History Review)』 1(3) pp. 28-55,i
2件 (「Ka line」)
Matsuo Nambu・Katsutoshi Tanida ·1967-01-01 ·『The Journal of the Japanese Association of Mineralogists Petrologists and Economic Geologists』 58(2) pp. 39-54