The present study peruses EFL learners in a kind of process-product approach in writing and investigates the possible effects of teachers' direct and indirect corrective feedback in four English language institutes in Isfahan, Iran. Four groups of intermediate students participated as a case in this study. The total number of participants was 120 female EFL learners selected based on a convenient non-random sampling method but randomly divided into four experimental groups. In the first group, the product-based approach was used to teach writing, and the learners received direct corrective feedback. In the second group, again product-based approach was used to teach writing, and the learners received indirect corrective feedback. In the third group, the writing was taught using a process-based approach, and the learners received direct corrective feedback, and in the last group, the learners received indirect feedback in process-based writing. The writing performance of the students in all four groups was compared in terms of accuracy. ANOVA and Post-hoc tests revealed that the process-based approach through which direct feedback was provided was more effective than other teaching writing approaches. [Note: The page range (35-53) shown on the PDF is incorrect. The correct page range for this article is p36-53.]