Saputra, Berliana Wanodya Diva, Lulu Tunjung Biru, and R. Ahmad Zaky El Islami. “Development of Four-Tier Multiple Choice (4TMC) Test Instrument Based on Higher Order Thinking Skill (HOTS) on Elements, Compounds and Mixtures Material: Pengembangan Instrumen Tes Four-Tier Multiple Choice (4TMC) Berbasis Higher Order Thinking Skill (HOTS) Materi Unsur, Senyawa Dan Campuran”. PENDIPA Journal of Science Education 9, no. 2 (July 13, 2025): 442–449. Accessed July 15, 2025. https://ejournal.unib.ac.id/pendipa/article/view/42466.