Maulana, E. N., H. T. Joewono, W. Widjiati, and W. Purnomo. “Why Mozart Compositions During Pregnancy Should Be Exposed in the Night. Study on Apoptotic Index of Rattus Norvegicus offsprings’ Brain Neurons”. Majalah Obstetri & Ginekologi, vol. 25, no. 3, Mar. 2018, pp. 97-102, doi:10.20473/mog.V25I32017.97-102.