Anggara W. KAJIAN MODEL SPRINGATE PADA KELOMPOK SAHAM JAKARTA ISLAMIC INDEX PERIODE 2013 – 2017. muamalat [Internet]. 2019Jun.29 [cited 2025Jul.6];4(I):25-9. Available from: https://journal.iainlangsa.ac.id/index.php/muamalat/article/view/953