When using works (e.g. journal article, e-book) obtained from academic research databases or platforms, APA style rules are:
Material without page numbers
Web citations require much of the same information as print sources, but also provide the location of an online source:
1. Permanent identifier, etc. DOI, URN, Handle, or permalink.
Search for DOI:
You have to carefully consider the title of your article or thesis and write the abstract keeping in mind how the people researching the same topic will best find it.
The title attracts readers to read the abstract - the abstract attracts readers to read the whole article or thesis.
When choosing the title consider also how a colleague searching for information will find it: use words that accurately describe the topic, avoid vague and abstract terms!
Write the abstract first
Start your writing process with the abstract because it is a concise version of your article or thesis and helps you crystallize the main points of your study.
Using synonyms in your text increases the probability that more information seekers will find your article or thesis in the database. In information seeking the title and the abstract are the most important fields in the relevance ranking.
Belcher, W. L. (2009). Writing your journal article in 12 weeks: A guide to academic publishing success. Thousand Oaks, Calif: SAGE. Retrieved from https://oula.finna.fi/Record/oula.1230454.