Caizaluisa Cárdenas, V. P., & Sánchez Bastidas, G. C. (2014). The use of the assessment portafolio to promote the 21st century skills (collaboration communication and critical thinking ) Focused on writing in the students of second year of bachillerato Degree at Ecológico Trilingue Gonzalo Ruales Benalcázar High school during the school year 2013-2014.

Caizaluisa Cárdenas, Valeria Pilar, and Gabriela Cristina Sánchez Bastidas. The Use of the Assessment Portafolio to Promote the 21st Century Skills (collaboration Communication and Critical Thinking ) Focused On Writing in the Students of Second Year of Bachillerato Degree At Ecológico Trilingue Gonzalo Ruales Benalcázar High School During the School Year 2013-2014. 2014.

Caizaluisa Cárdenas, Valeria Pilar, and Gabriela Cristina Sánchez Bastidas. The Use of the Assessment Portafolio to Promote the 21st Century Skills (collaboration Communication and Critical Thinking ) Focused On Writing in the Students of Second Year of Bachillerato Degree At Ecológico Trilingue Gonzalo Ruales Benalcázar High School During the School Year 2013-2014. 2014.