DOI: Acronym that stands for digital object identifier, which is a number under which electronic documents are cataloged.
Sentence case: A method of capitalizing in which the only capitalized words are the first word, any proper nouns, or words that immediately follow a colon (much like the capitalization pattern of a sentence, hence the name).
Seriation: The use of lists within text.
Title case: A method of capitalizing where all major words (including all verbs and all words with four or more letters) are capitalized.
For helpful tutorials on using APA style, access Free APA Style Tutorials created by the publishers of the APA manual.