Manurung, Raja Pagarlan, Didimus Tanah Boleng, Sonja V. T. Lumowa, Akhmad, Sukartiningsih, Taufan Purwokusumaning Daru, Elsje Theodora Maasawet, and Vandalita Rambitan. 2024. “Development of Learning Tools Social Emotional Defense to Improve Learning Outcomes and Critical Thinking Skills in Human Reproductive System Materials in SMP Negeri 2 Intu Lingau”. Jurnal Penelitian Pendidikan IPA 10 (7):3838-49. https://doi.org/10.29303/jppipa.v10i7.7505.