SITI KURNIA RAHAYU; SARI, Aju Widya. Sunk Cost Analysis of Frequency Spectrum Auction Prices in Indonesia Using Data Envelopment Analysis. Journal of Eastern European and Central Asian Research (JEECAR), [S. l.], v. 9, n. 1, p. 49–61, 2022. DOI: 10.15549/jeecar.v9i1.879. Disponível em: https://ieeca.org/journal/index.php/JEECAR/article/view/879. Acesso em: 3 jul. 2024.