etal, et al.
etal found
etal reported
etal suggested
etal showed
etal’s work
etal’s study
etal’s research
etal demonstrated
etal indicated
smith et al. published a groundbreaking study on climate change.
the research findings were consistent with those reported by jones et al.
johnson et al. investigated the impact of social media on adolescent behavior.
according to brown et al., further investigation is needed in this area.
the study, as detailed by lee et al., involved a large sample size.
davis et al. proposed a new model for understanding consumer preferences.
the results corroborated the earlier work of garcia et al.
wilson et al. demonstrated a significant correlation between exercise and mental health.
the methodology was similar to that used by rodriguez et al.
as shown by chen et al., the effect size was statistically significant.
the limitations of the study were discussed by patel et al.
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