Orange peel was chosen in this study because it is easily found as a waste product everywhere specially in the market. This research was conducted at the Metro-Dagupan Colleges. Production of extract from orange peel was done at the Laboratory room of Metro-Dagupan Colleges. The research study was focus in studying the essential oil of orange extract as an alternative muscle pain reliever.
There was three treatments used in the study;
Experiment 1, 50g of Orange extract + 15ml of coconut oil
Experiment 2, 75g of Orange extract + 15ml of coconut oil
Experiment 3, 100g of Orange extract + 15ml of coconut oil
The three treatments was applied to 15 respondents. Each experiment would test 5 respondents each. This study was limited only to those persons who have muscle pain.

Ang mga respondente sa pananaliksik na ito ay ang mga mag-aaral sa Metro-Dagupan Colleges Science-Based Productivity High School sa ikawalong baitang na may bilang na umaabot sa dalawampu't apat (24). Sila ang napili bilang mga respondente sa pananaliksik na ito sapagkat bahagi ng kanilang pag-aaral ang asignaturang agham at dahil ito ang ikawalong baitang sa mataas na paaralan lubusang makikita ang kahinaan at kagalingan ng mag-aaral sa asignaturang agham.

The study was limited primarily to include records of students enrolled in the different collegiate courses offered by Metro-Dagupan Colleges for the School Year 2017-2018. Also, it is not designed to handle the scheduling of classes per semester. The researchers focused on the current system being used by the Registrar's Office as a subject for the study. The study does not cover the school accounts, complete personal data of the students and their grade's computation in each subject.

This study aimed to determine the Reading Readiness of Grade 1 pupils at Mangaldan Central School from S.Y. 2016-2017. The respondents of this study were the Grade 1 pupils at Mangaldan Central School. It composed of 10 sections.

This study only included those student respondents who are eating from food carts. It did not included Teachers or employees of Mangaldan National High School.

This study is primarily concerned with the factors affecting the delivery of services of programs of MSWD Branch. The study is limited to 50 juveniles at the said branch and 10 social workers why because they are the ones directly handling juvenile's cases.

This study involved the students of Grade VI pupils at Salaan Elementary School who were cellphone users of six (6) months to two (2) years only. It did not included pupils who have been using cellphone for a short period of time. This study focused on text messaging as a factor in the spelling proficiency of the pupils in the Filipino Language only. The study did not include other skills, like grammar and reading comprehension, since spelling was the primary focus.