Fitriani, Lani, Taufik Ramalis, and Ridwan Efendi. “Karakterisasi Tes Keterampilan Proses Sains Materi Fluida Statis Berdasarkan Teori Respon Butir”. Omega: Jurnal Fisika dan Pendidikan Fisika 5, no. 2 (November 30, 2019): 27. Accessed July 3, 2020. http://jurnalomega.org/index.php/omega/article/view/102.