Please guide me the approach to analyze earnings quality, balance sheet quality, and cash flow quality of this company thoroughly especially through M-score, Z-score, and Coefficient on earnings persistence model based on the given information of ABD And I don't know how to interpret it in whole picture, Thank you in advance.
ABD Corporation: Financial information					2018	2019	2020
M-score					-3.48	-4.05	-1.94
Z-score					2.78	2.98	3.17
Cash ratio(times)					0.06	0.04	0.04
Cash flow from operating activity (Baht)					19,943,652	17,675,432	17,943,657
Cash flow from investing activity (Baht)					-14,777,065	-18,732,456	-16,234,567
Cash flow from financing activity (Baht)					-9,422,372	-8,235,671	-8,342,009
Net income excluding non-recurring items (Baht)					28,161,315	26,263,890	27,457,821
Cash dividend paid (Baht)					5,000,000	5,000,000	5,000,000
Capital expenditure (Baht)					7,798,285	8,237,301	7,832,019
Coefficient on earnings persistence model (cash flow component)*					0.272
Coefficient on earnings persistence model (accrual component)*					0.325
* The coefficients are estimated using quarterly data during 2018-2020.