| President Benigno C. Aquino’s Inaugural Address: A Critical Discourse Analysis RR Costales Randwick International of Education and Linguistics Science Journal 2 (2 …, 2021 | 2 | 2021 |
| TEACHERS’ATTITUDES AND CHALLENGES TOWARDS USE OF MOTHER TONGUE-BASED INSTRUCTION PA Bautista, RR Costales Ignatian International Journal for Multidisciplinary Research 2 (4), 625-642, 2024 | | 2024 |
| Code-Switching Patterns of Senior High School Students and Teachers in the Technical Vocational and Livelihood (TVL) Shops And Language Classes: Basis for Intervention MU Bayucan, RR Costales Randwick International of Education and Linguistics Science Journal 4 (3 …, 2023 | | 2023 |
| Productive vocabulary knowledge of pre-service teachers as a predictor of writing performance: basis for English syllabi And instructional modules improvement RR Costales Central European Management Journal 30 (4), 786-797, 2022 | | 2022 |
| PROPOSED WORKTEXT IN TEACHING/LEARNING COMMUNICATION ARTS FOR FRESHMAN COLLEGE STUDENTS PD ROMEL R. COSTALES Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and …, 2022 | | 2022 |
| Proposed Work Text in Teaching and Learning Communication Arts for Freshman College Students RR Costales Randwick International of Education and Linguistics Science Journal 3 (3 …, 2022 | | 2022 |
| ENGLISH LEXICAL KNOWLEDGE OF PRE-SERVICE TEACHERS: BASIS FOR TEACHER EDUCATION LANGUAGE PROGRAM ENRICHMENT RR Costales ASIAN EFL JOURNAL 21 (2.4), 226-251, 2019 | | 2019 |
