Orígen y Significación de Algunas Frases, Locuciones, Refranes, Adagios y Proverbios Usados en la Republica Mexicana o en Algunas Regiones de Ella (Classic Reprint) Rivera Luis M. Heftet / 2018 / Spansk
Identity Development during STEM Integration for Underrepresented Minority Students Kuchynka, Sophie L. Heftet / 2020 / Engelsk
Ethnic-Racial Stigma and Physical Health Disparities in the United States of America From Psychological Theory and Evidence to Public Policy Solutions Rivera Luis M. Heftet / 2014 / Engelsk
