Rahayu, Budi, Mieke Miarsyah, and Ratna Komala. 2019. “THE EFFECT OF GROUP INVESTIGATION BY SIGIL AND LEARNING MOTIVATION TOWARD BIOLOGY LEARNING OUTCOMES”. International Journal of Engineering Technologies and Management Research 6 (7):46-51. https://doi.org/10.29121/ijetmr.v6.i7.2019.414.