Rahma Ashari Firmansyah, Erna Budi Setiawati, Adrianus Rebon Piran, and Ul’fah Hernaeny, M. Pd, “PEMBELAJARAN KALKULUS INTEGRAL ‘INTEGRAL TAK TENTU’ BERBASIS PENALARAN KONSEPTUAL”, Trigonometri, vol. 3, no. 3, pp. 71–80, Jul. 2024.