Dr. Estera holds a Doctor of Philosophy in Filipino from Sorsogon State University. He also completed Master’s in Education and Bachelor’s in Education at the same university and at Saint Louise de Marillac College of Sorsogon, respectively. Currently, he is a Teacher III at Juban National High School, SDO Sorsogon, since 2017. He has previously taught at Del Carmen Memorial National High School and Aemilianum College, Sorsogon City. He has received multiple research awards, including 1st and 2nd places in the 3rd Graduate School Research Colloquium in 2024.
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