Endah Rokhmati MP, Lukman Hanafi and Supriati (2007) “Perbandingan Model Black Scholes dan Brennan Schwartz untuk Menentukan Harga American Option”, Limits: Journal of Mathematics and Its Applications, 4(1), p. 47. vailable at: https://journal.its.ac.id/index.php/limits/article/view/5391 (ccessed: 3January2026).