The significance of citation is of plagiarism. See below image which I took from a journal site:
This journal offers 4 types of citation for the current paper.
APA style of academic journaling is commonly applied in education, business, sociology, psychology, women studies, etc.
Let's go through the words: ABSTRACT is the summary of our article publication. APA suggests a comprehensive summary of the article no longer than 250 words. The abstract shall clearly state the hypotheses, research question/problem, key aspects of the literature review, methods used (study design, sample, and sample size), study result, and implications (applications). Refer to the APA official website stated in the reference for more details of what the abstract shall look like.