Khofifah, Utami, Jujun Ratnasari, and Aa Juhanda. “Analisis Butir Soal Kemampuan Tree Thinking Pada Instrumen Uji Coba Materi Spermathophyta: (Analysis of Tree Thinking Ability Problem Ability in Spermathophyta Trial Material Instruments)”. BIODIK 6, no. 3 (October 9, 2020): 328-335. Accessed July 18, 2024. https://online-journal.unja.ac.id/biodik/article/view/9907.