@phdthesis{ OYEDIRAN:2011,
title = { THREE ESSAYS ON PRO-SOCIAL BEHAVIOR },
author = { OLUSEGUN OYEDIRAN },
director = { PABLO BRAÑAS GARZA and MARIA FERNANDA RIVAS RODRIGUEZ },
school = { UNIVERSIDAD DE GRANADA. TEORIA E HISTORIA ECONOMICA },
year = { 2011 },
}