Winanda, R. S., Mikail, A. ., Ahmad, D. ., Agustina, D. . and Rahmawati, R. (2022) “University Students’ Procrastination: A Mathematical Model (Case Studies: Student in Mathematics Department Universitas Negeri Padang)”, Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464), 23(02), pp. 98-105. doi: 10.24036/eksakta/vol23-iss02/315.