共 132 条
[81]
NELSON RR, 1966, AM ECON REV, V56, P69
[82]
NERLOVE M, 1976, 1 NW U DISC PAP
[83]
Nerlove M., 1973, UNIVARIATE MULTIVARI
[85]
NORDMAN DW, 1969, NIGERIAN J EC SOCIAL, V11, P1
[86]
O'Mara G, 1971, THESIS STANFORD U
[87]
OJO GJA, 1963, NIGERIAN GEOGRAPHICA, V6
[88]
OMARA G, 1980, MICROECONOMICS TECHN
[89]
Parthasarathy G., 1978, RESPONSE IMPACT NEW