Suherdiana, Dadan, and Enjang Muhaemin. “The Da’wah of Nahdlatul Ulama and Muhammadiyah in Social Media of Facebook”. Ilmu Dakwah: Academic Journal for Homiletic Studies, vol. 12, no. 2, Dec. 2018, pp. 187-00, doi:10.15575/idajhs.v12i2.6176.