00848nam a22001697a 4500040003700000082001300037100002500050245010500075260003500180300004200215500016100257500004100418500003800459502005900497546001200556650011000568  cRiphah International University   a420bSUM  aSumera Zafar (53768)  aInvestigating the impact of teachers' feedback on learning english writing skills at secondary level  aIslamabadb(Unpublished)c2025  axiii , 116 p. b: ill.c; 30 cm.e+CD  aSubmitted in the partial fulfillment of the requirements for the degree of master of philosophy in English Linguistics to the department of Social sciences.  aIncludes bibliographical references.  aThesis supervisor: Dr. Shamim Ali  aThesis (M.Phil)--Riphah International University, 2025  aEnglish  aEnglish linguistics vInteractionalist theory vEnglish writing skillvDirect feednbackvSlass sizevFSSH