The International journal of research management volume XIX/No. 4/July 1976
1977 ◽
Vol EM-24
(1)
◽
pp. 29-29
1977 ◽
Vol EM-24
(1)
◽
pp. 28-28
1978 ◽
Vol EM-25
(4)
◽
pp. 100-100
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