Hussain, G. “Preposition Phrase Expressions: A Corpus-Based Study of Lexical Bundles in Pakistani Textbooks: Phrase Expressions: A Corpus-Based Study of Lexical Bundles in Pakistani Textbooks”. CORPORUM: Journal of Corpus Linguistics, vol. 4, no. 2, June 2020, pp. 69-83, https://journals.au.edu.pk/ojscrc/index.php/crc/article/view/50.