I am wondering why it is so hard for the article to properly reference the study. Then one could easily check through the citiations on google scholar for examp

I am wondering why it is so hard for the article to properly reference the study. Then one could easily check through the citiations on google scholar for example. Probably it is Ross, L, Lepper, M. R., & Hubbard, M. (1975). Perseverance in self-perception and social perception: Biased attributional processes in the debriefing paradigm. Journal of Personality and Social Psychology, 32(5), 880–892.