J. br Sembiring and Yohan, “PELATIHAN PENGUKURAN TINGKAT KEASAMAN LARUTAN DI SMP PANGUDI LUHUR KOTA DELTAMAS CIKARANG: TRAINING ON MEASURING THE ACIDITY LEVEL OF SOLUTIONS AT PANGUDI LUHUR JHS DELTAMAS CITY CIKARANG”, JDMS, vol. 1, no. 2, pp. 23–31, Sep. 2024.