Title:The rebus sic stantibus clause en the purchase contract of an expected thing / La cláusula rebus sic stantibus en el contrato de compraventa de cosa futura esperada
Title:The political right to suit the constitutional amendments: weakness and strengths / El derecho político a demandar por inconstitucionalidad reformas constitucionales: límites y potencialidades
Title:The jigsaw cooperative learning technique as a resource to enhance confidence and fluency in English oral activities of students in 10th grade at INSTEC
Title:The issue of fees in the administration of Latin American pension system, with special reference to the Colombian system / La problemática de las comisiones en la administración de los regímenes de pensiones latinoamericanos: especial referencia al sistema colombiano