@article{ชาคโรทัย_สุนทรธนผล_2017, title={การพัฒนาชุดการสอนกีตาร์เบื้องต้น สำหรับนักเรียนชั้นมัธยมศึกษาปีที่ 1 โรงเรียนยอแซฟอุปถัมภ์ แผนกสามัญหญิง อำเภอสามพราน จังหวัดนครปฐม}, volume={21}, url={https://so01.tci-thaijo.org/index.php/jfofa/article/view/208755}, abstractNote={<p>The purpose of this research was to develop the basic guitar instructional package for mathayom 1 students, Joseph Upatham School, Girl Department, Sampran, Nakhonpathom with an 80/80 efficient standard. The sample of this research consisted of 17 mathayom 1 students who were register in music subject of Joseph Upatham School in semester year of 2016. The research instrument was the basic guitar instructional package for mathayom 1 students, Joseph Upatham School, Girl Department, Sampran, Nakhonpathom. Data was analyzed by percentage (%). The results of this research found that the basic guitar instructional package for mathayom 1 students, Joseph Upatham School, Girl Department, Sampran, Nakhonpathom averaged at 80.15/83.42 which was higher than an 80/80 efficiency.</p>}, number={2}, journal={Fine Arts Journal: Srinakharinwirot University}, author={ชาคโรทัย ณัฐกร and สุนทรธนผล นัฏฐิกา}, year={2017}, month={Dec.}, pages={32–40} }