Firdaus, Revo. “Pengaruh Risiko, Return, Dan Perekonomian Indonesia Terhadap Keputusan Berinvestasi Saat Covid-19”. Jurnal Pasar Modal dan Bisnis 2, no. 2 (August 31, 2020): 115-128. Accessed April 14, 2021. http://jurnal.ticmi.co.id/index.php/jpmb/article/view/43.