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Utami, Riyana (2021) ESTIMASI PARAMETER MODEL INTERVENSI MENGGUNAKAN METODE MAXIMUM LIKELIHOOD (Studi Kasus : Saham BMRI Periode Januari 2010 – Maret 2021). S1 thesis, Universitas Mataram.
Utami, Riyana (2023) Peer Review: Intervention Model of IDX Finance Stock for the Period May 2010 - May 2020 Due to the Effects of the Corona Virus. IOP. (Unpublished)
Utami, Riyana Hasil Turnitin: Artikel IOP Riyana. IOP. (Unpublished)