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All Journal Masalah-Masalah Hukum LAW REFORM Diponegoro Law Journal Pandecta Jurnal Daulat Hukum Gema Keadilan Law, Development and Justice Review Notaire SIGn Jurnal Hukum Jurnal Suara Hukum Journal of Creative Student Research Al-Bayyinah PESHUM
Ery Agus Priyono
University Of Diponegoro - Faculty Of Law
Religion Humanities Decision Sciences, Operations Research & Management Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences Transportation

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Relevansi Doktrin Promissory Estoppel dalam Pembentukan Hukum Kontrak Bisnis Indonesia Margareta Gita Sirait; Ery Agus Priyono
Journal of Creative Student Research Vol. 4 No. 3 (2026): Juni : Journal of Creative Student Research
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jcsr-politama.v4i3.6218

Abstract

This study examines the relevance of the doctrine of promissory estoppel in the formation of business contract law in Indonesia. The development of modern business transactions demonstrates that legal relationships are no longer solely based on formal written contracts, but also arise during pre-contractual stages such as offering letters, memorandums of understanding, purchase orders, and electronic communications. This condition often creates legal uncertainty when one party withdraws a promise after the other party has relied on it and suffered losses. This research employs a normative legal method using conceptual and statutory approaches supported by literature studies. The findings indicate that the doctrine of promissory estoppel is relevant to strengthening legal protection, good faith, proportionality, and legal certainty within Indonesian business contracts. Although originating from the common law system, the doctrine substantively aligns with principles recognized in Indonesian contract law. The study concludes that harmonizing promissory estoppel with the national civil law system may contribute to a more adaptive and equitable business contract framework in Indonesia.
Co-Authors Achmad Arief Budiman Alif Abdurrahman Amiek Soemarmi Ananda Safiratuzzahra Andhini Septiana Andi Sunarto Bagus Rahmanda Bambang Eko Turisno Budi Santoso Dewi Hendrawati Dharu Triasih Dharu Triasih Heni Ristiana Herni Widanarti IGA Gangga Santi Dewi Islamiyati Islamiyati Katya Nabila Saka Birauti Kornelius Benuf Kornelius Benuf Kornelius Benuf Margareta Gita Sirait Mira Novana Ardani Miranda Damayanti Muhamad Azhar R. Suharto Rahma Yunita Soviani Salsabila Zerlina Putri Siti Mahmudah Siti Malikhatun Badriyah, Siti Slamet Hariyono Suradi Suradi Tiffany Agave Christiantirta