Widyaningrum, Indah, and Widiawati W. “PENERAPAN ALAT PERAGA PIPA LOGIKA PADA MATERI LOGIKA MATEMATIKA DI KELAS X”. JOURNAL of MATHEMATICS SCIENCE and EDUCATION 2, no. 1 (December 31, 2019): 12-23. Accessed July 17, 2024. https://ojs.stkippgri-lubuklinggau.ac.id/index.php/JMSE/article/view/445.