A nexus of linear and non-linear relationships between tourism demand, renewable energy consumption, and economic growth: theory and evidence / Cem Isik, Tarik Dogru and Ercan Sirakaya Turk
Sinais Ambientais : Algarve 2003
A linear expenditure model for tourism demand / Sung Soo Pyo, Muzaffer Uysal, Robert W. McLellan
The world market atlas : 1992 edition / Michael Moynihan
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