Research
Scientific research: ບົດວິໄຈທາງວິທະຍາສາດ
1. Colour changing of litmus paper with phosphate buffer solution.
ການປ່ຽນສີຂອງເຈ້ຍລິດສມັດ ກັບທາດລະລາຍຟົດສເຟດສບັບເຟີ.
Further scientific research:
2. Colour changing of litmus paper with ethanolamine buffer system.