DECREASING THE BLACK-SCHOLES FORMULA FOR EUROPEAN PUT OPTION PRICING: PENURUNAN RUMUS BLACK-SCHOLES UNTUK PENENTUAN HARGA OPSI PUT EROPA. JISTECH: Journal of Information Science and Technology, [S. l.], v. 6, n. 2, 2023. Disponível em: https://www.jistechunipa.com/index.php/istech/article/view/138. Acesso em: 3 jul. 2026.