Amaia Arranz-Otaegui; dll. (Jul 16, 2018). "Archaeobotanical evidence reveals the origins of bread 14,400 years ago in northeastern Jordan". PNAS. doi:10.1073/pnas.1801071115. Explicit use of et al. in: |last1= (bantuan)
Amaia Arranz-Otaegui; dll. (Jul 16, 2018). "Archaeobotanical evidence reveals the origins of bread 14,400 years ago in northeastern Jordan". PNAS. doi:10.1073/pnas.1801071115. Explicit use of et al. in: |last1= (bantuan)