Standard Operational Procedures for Organizing Practical Activities in High School Biology Laboratories in Yogyakarta City - Pratiwi, Asti Dwi; Maharani, Adelia; Saifuddin, Much. Fuad; Syafani, Iin; Alfariz, Ade Jatra; Istiqomah, Ilmiyah Nurul; Puspitasari, Etika Dyah; Ma'rifah, Destri Ratna (Indonesian Journal of Biology Education, 2024)