“Keabsahan Emoji Jempol Sebagai Ṣīgah Akad Jual Beli Online di Indonesia Berdasarkan Kaidah al-‘Ādah Muḥakkamah: The Validity of the Thumbs-Up Emoji as the Ṣīghah of an Online Sale and Purchase Contract in Indonesia Based on the Maxim al-‘Ādah Muḥakkamah” (2026) AL-FIKRAH: Jurnal Kajian Islam, 3(6), pp. 1098–1103. doi:10.36701/fikrah.v3i6.3365.