Mga Tala
http://www.academia.edu/22126992/Pagsasaliksik_sa_Dahilang_Higit_na_Nakakaapekto_sa_Pagba gsak_sa_Ilang_Asignatura_sa_Kursong_ECE - KABANATA 1
https://blog.edukasyon.ph/senior-high/k-12-academic-track-series-humss/ - KABANATA 2
https://brainly.ph/question/282541
https://brainly.ph/question/538674
https://brainly.ph/question/971250
https://www.pdfcoke.com/doc/94948251/modyul-1
https://tl.wikipedia.org/wiki/Dota_2
https://brainly.ph/question/1029204
http://www.academia.edu/36129226/Bakit_mababa_ang_marka_ng_mga_estudyante_sa_paaralan
https://www.academia.edu/28402119/THESIS_FINAL_1
https://tl.innerself.com/content/social/economy/education/13443-students-have-difficulty-learningin-different-unproven-ways.html