In Reference citation, middle of the sentence “Ref.” or “Refs.” should be deleted.
i. For one author, author surname [1]
ii. For two authors, first author surname et al. [2]
iii. For three or more authors, first author surname et al. [4]
iv. For citations of references, use square brackets and en dash between numbers for ranges. Citation should be placed before punctuation.
In Reference citation, middle of the sentence “Ref.” or “Refs.” should be deleted. i. For one author, author surname [1] ii. For two authors, first author surname et al. [2] iii. For three or more authors, first author surname et al. [4] iv. For citations of references, use square brackets and en dash between numbers for ranges. Citation should be placed before punctuation.