Rahayu, Budi, Mieke Miarsyah, and Ratna Komala. “THE EFFECT OF GROUP INVESTIGATION BY SIGIL AND LEARNING MOTIVATION TOWARD BIOLOGY LEARNING OUTCOMES”. International Journal of Engineering Technologies and Management Research 6, no. 7 (July 31, 2019): 46–51. Accessed March 29, 2024. https://www.granthaalayahpublication.org/ijetmr-ojms/ijetmr/article/view/05_IJETMR19_A07_1134.