List of Speaker Participant

No	NAME	INSTITUTION	CATEGORY	TITLE OF PAPER	PAPER
41	wan zahara zaitu hania	Yogyakarta State University	Chemistry education	The analysis of Multiple Representation use in Chemistry Teaching and Textbook
42	Ermia Hidayanti	Yogyakarta State University	Chemistry education	The Effectiveness of Chemistry Project-Based Learning on Student’s Analytical Thinking Ability Studying Electrolyte and Non-Electrolyte	OK
43	Riska Melani	Universitas Negeri Yogyakarta	Chemistry education	The Implementation of Project-Based Learning on Student’s Problem-Solving Ability in Acid-Base Materials	OK
44	Agrippina Wiraningtyas	STKIP Bima	Chemistry	Preparation of Cu Nanoparticles (CuNPs) using Sargassum sp. and Its Application As A Self-Cleaning Material on Woven Fabrics	OK
45	Siti Najiah Mohd Yusoff	Universiti Pendidikan Sultan Idris, Malaysia	Chemistry	Alkyl glycol chitosan derivatives for encapsulation and controlled release of rotenone	OK
46	Annisa Fillaeli	Universitas Negeri Yogyakarta	Chemistry	REGENERATION OF ACTIVATED CHARCOAL FOR DECREASING Zn AND Cu LEVELS IN ELECTROPLATING INDUSTRIAL EFFLUENT	OK
47	L.Sugiyarto	Yogyakarta State University	Biology	Photosynthetic response and chlorophyll content to different altitudes of terrestrial orchids Spathoglottis plicata Blume	OK
48	Gusti Arisandi	Universitas Negeri Yogyakarta	Chemistry education	The implementation of analogy based chemistry learning in analisying students’ higher order thinking skill in the chemical bond learning material	OK
49	Tien Aminatun	Universitas Negeri Yogyakarta	Biology education	Developing an android-based biology learning module utilizing local ecosystem materials to improve thinking skills of senior high school students	OK
50	Suratsih	UNY	Biology education	THE EFFECT OF LEARNING MODEL BASED ON SCIENTIFIC APPROACH WITH REAL OBJECT AND ICT TOWARDS STUDENTS’ BIOLOGICAL LITERACY	OK

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