Slamet, Slamet, Walujo, Djoko, AND Sugito, Sugito. " The Improvement Critical Thinking Ability of Students Through Reciprocal Learning (Reciprocal Teaching) and Jigsaw Models in Biological Lesson in Parlaungan Islamic High School and Al-Muslim High School" BIOEDUKASI [Online], Volume 17 Number 2 (7 October 2019)