Amigos: Supervivencia para adolescentes

Mark Oestreicher (Marko) is a life-long youth worker. He has worked with middle schoolers for about 28 years, both in paid and volunteer positions. Marko has written dozens of books for students and youth workers and speaks to thousands around the world each year. SPANISH BIO: Mark Oestreicher con una vasta experiencia ministrando a jovenes, ha sido pastor en diversas iglesias y ha escrito mas de 20 libros para lideres y adolescentes. Hoy lidera Especialidades Juveniles en Estados Unidos y ...