ASHRAF, DR ROHMA, et al. “NORETHISTERONE ACETATE ALONE VERSUS IN COMBINATION WITH LETROZOLE FOR TREATMENT OF CHRONIC PELVIC PAIN IN PATIENTS WITH ENDOMETRIOSIS”. TPM – Testing, Psychometrics, Methodology in Applied Psychology, vol. 32, no. S9 (2025): Posted 15 December, Dec. 2025, pp. 3159-63, https://tpmap.org/submission/index.php/tpm/article/view/4443.