SADRA, Yaser. A New Image Compression by Gradient Haar Wavelet. Indian Journal of Computer Science, [S. l.], v. 5, n. 2&3, p. 10–21, 2020. DOI: 10.17010/ijcs/2020/v5/i2-3/152207. Disponível em: https://www.indianjournalofentrepreneurship.com/index.php/tcsj/article/view/152207. Acesso em: 7 oct. 2025.