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), 1098-1103. https://doi.org/10.36701/fikrah.v3i6.3365