S.P. Singh, .
Econometrics and Mathematical Economics / - Third Ed. / - New Delhi-55 : S. Chand & Company Ltd.. - p.365,vi :
Mathematical Economics
X:(B) / M4
Econometrics and Mathematical Economics / - Third Ed. / - New Delhi-55 : S. Chand & Company Ltd.. - p.365,vi :
Mathematical Economics
X:(B) / M4