Al Irsyat, T. et al. 2023. The Effect Of Handouts Based On Project-Based Learning Equipped With Portfolio Assessment On The Learning Outcomes Of Students In Class XI SMA N 13 Padang. Jurnal Pendidikan Tambusai. 7, 3 (Dec. 2023), 29487–29496. DOI:https://doi.org/10.31004/jptam.v7i3.11726.