“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, vol. 6, no. 2, Jan. 2023,
https://www.jistechunipa.com/index.php/istech/article/view/138.